Updated on 2025/09/08

写真a

 
Takuma Shiga
 
Organization
Graduate School of Engineering Department of Advanced Science and Technology Mechanical Systems Engineering Mechanical Material Engineering Laboratory Associate Professor   
Degree
博士 ( 2013.3   東京大学 )
External link

Research Areas

  • Informatics / Computational science

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Thermal engineering

  • Nanotechnology/Materials / Nanostructure physics

Main research papers

Research History

  • Toyota Technological Institute   Associate Professor

    2025.9

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    Country:Japan

  • National Institute of Advanced Industrial Science and Technology

    2025.4 - 2025.8

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    Country:Japan

  • National Institute of Advanced Industrial Science and Technology   National Metrology Institute of Japan

    2023.4 - 2025.8

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    Country:Japan

  • National Institute of Advanced Industrial Science and Technology   National Metrology Institute of Japan   Senior Research Scientist

    2022.4 - 2025.3

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    Country:Japan

  • The University of Tokyo   Department of Mechanical Engineering, School of Engineering   Lecturer

    2018.5 - 2022.3

  • 科学技術振興機構   さきがけ研究員(兼任)

    2017.10 - 2021.3

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    Country:Japan

  • The University of Tokyo   Department of Mechanical Engineering, Shool of Engineering   Assistant Professor

    2014.2 - 2018.5

  • JSPS   Research Fellow

    2013.4 - 2014.1

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Education

  • The University of Tokyo   School of Engineering   Department of Mechanical Engineering

    2010.4 - 2013.3

  • Tokyo University of Science   Graduate School of Science   Department of Physics

    2008.4 - 2010.3

  • Tokyo University of Science

    2004.4 - 2008.3

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    Country: Japan

Professional Memberships

  • 日本物理学会

  • 日本熱電学会

  • 日本熱物性学会

  • 日本機械学会

  • 日本伝熱学会

  • The Japan Society of Applied Physics

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Committee Memberships

  • 熱物性学会   評議員  

    2024.10 - 2026.9   

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    Committee type:Academic society

  • 熱物性学会   ナノスケール熱物性の評価オーガナイザー  

    2022.4   

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    Committee type:Academic society

  • 社団法人 日本機械学会   熱工学部門 運営委員会 委員  

    2023.4 - 2025.3   

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    Committee type:Academic society

  • 日本伝熱学会   第62期 編集出版部会 委員  

    2023.4 - 2024.3   

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    Committee type:Academic society

  • 日本伝熱学会   協議員  

    2022.4 - 2024.3   

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    Committee type:Academic society

  • 一般社団法人 日本機械学会   2022年熱工学コンファレンス 実行委員  

    2021.9 - 2022.10   

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    Committee type:Academic society

  • 日本物理学会   領域10運営委員(フォノン分科)  

    2021.4 - 2022.3   

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    Committee type:Academic society

  • 日本物理学会   領域10・連絡委員  

    2021.4 - 2022.3   

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    Committee type:Academic society

  • Asian Thermophysical Properties Conference (ATPC2022)   National Executive Comittee (NEC)  

    2021.3 - 2022.10   

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    Committee type:Academic society

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Research theme

  • Development of spectral analysis and measurement techniques for thermal transport

    志賀 拓麿

    2025

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    Phonons, the quanta of lattice vibrations, can exhibit unconventional transport behavior at microscopic scales such as nanostructured regions or interfaces, which cannot be explained by conventional thermal diffusion or particle pictures. This research topic aims to develop novel techniques for analyzing and measuring such phonon transport, with a particular focus on these non-conventional transport regimes. Furthermore, it seeks to advance a fundamental understanding of thermal transport and to establish next-generation thermal control strategies, for example, by developing methods that directly probe the spectral characteristics of phonon transport.

Papers

  • Magnetothermal resistance effect in a Co50Fe50/Cu multilayer studied via analysis of electron and lattice thermal conductivities Reviewed

    Fuya Makino, Takamasa Hirai, Takuma Shiga, Hirofumi Suto, Hiroshi Fujihisa, Koichi Oyanagi, Satoru Kobayashi, Taisuke Sasaki, Takashi Yagi, Ken-ichi Uchida, Yuya Sakuraba

    Physical Review B   112 ( 5 )   054407 - 054407   2025.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/pd57-gcd5

  • Huge anisotropic magneto-thermal switching in high-purity polycrystalline compensated metals Reviewed

    Poonam Rani, Yuto Watanabe, Takuma Shiga, Yuya Sakuraba, Hikaru Takeda, Minoru Yamashita, Ken-ichi Uchida, Aichi Yamashita, Yoshikazu Mizuguchi

    Materials Today Electronics   13   100165 - 100165   2025.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.mtelec.2025.100165

  • Intrinsic Thermal Conductivity of Mg2NiH4 at High Pressures: A First-Principles Study Reviewed

    Takuma Shiga, Takashi Yagi, Hiroshi Fujihisa

    International Journal of Thermophysics   46 ( 8 )   115   2025.6 (   ISSN:0195-928X   eISSN:1572-9567 )

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

    DOI: 10.1007/s10765-025-03587-5

    Other Link: https://link.springer.com/article/10.1007/s10765-025-03587-5/fulltext.html

  • Influence of perturbative intertube interactions on ballistic and quasi-ballistic phonon transports in double-walled carbon nanotubes Reviewed

    Takuma Shiga, Yukihiko Terada, Takashi Kodama, Shohei Chiashi

    International Journal of Heat and Mass Transfer   233   126030 - 126030   2024.11 (   ISSN:0017-9310 )

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.ijheatmasstransfe

  • Structural Phase Transitions of Mg2NiH4 Induced by NiH4 Molecular Ion Distortion and Metal Lattice Deformation under High Pressures Reviewed

    Takuma Shiga, Takashi Yagi, Hiroshi Fujihisa

    Inorganic Chemistry   63 ( 44 )   21121 - 21129   2024.10 (   ISSN:0020-1669   eISSN:1520-510X )

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.inorgchem.4c03336

  • Correlation between the Cross-Plane Thermal and Electrical Conductance in Randomly Stacked MoS2 Reviewed

    Kaiyao Zhou, Kan Ueji, Takuma Shiga, Hiroyuki Nishidome, Shigeki Saito, Sota Nakamura, Takahiko Endo, Yohei Yomogida, Yasumitsu Miyata, Junei Kobayashi, Takahiro Yamamoto, Takashi Yagi, Kazuhiro Yanagi

    ACS Applied Electronic Materials   6 ( 8 )   5934 - 5941   2024.7 (   ISSN:2637-6113   eISSN:2637-6113 )

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acsaelm.4c00911

  • Thermal transport and topological analyses of the heat-carrying modes and their relevant local structures in variously dense amorphous alumina Reviewed

    Takuma Shiga, Emi Minamitani, Yuichiro Yamashita, Takashi Yagi, Naoyuki Taketoshi, Yuzo Shigesato, Makoto Kashiwagi

    Applied Physics Letters   125 ( 1 )   012201 - 012201   2024.7 (   ISSN:0003-6951   eISSN:1077-3118 )

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:AIP Publishing  

    Engineering the thermal conductivities of amorphous materials is important for thermal management of various semiconducting devices. However, controlling the heat carriers—long-range propagating propagons and short-range hopping diffusons—in disordered lattices is difficult because the carriers are strongly correlated with lattice disorder. To clarify the relationship between lattice disorder and heat conduction, we must simultaneously investigate the important local structures hidden in a disordered system and the microscopic transport characteristics of propagons and diffusons. Here, we explore the variations in spectral thermal conductivity and the relevant local structures in amorphous alumina (a-Al2O3) at different densities by performing the spectral thermal transport and persistent homology analyses. As the density increases, the thermal conductivity of the high-frequency diffusons linearly increases but those of the propagons and low-frequency diffusons remain constant. The density increase enhances the local strain, thereby increasing the mean free paths of the high-frequency diffusons. The density of states competes with diffusivity, lowering the sensitivity of the density response to the thermal conductivity of low-frequency heat carriers. Furthermore, from the obtained topological features of the connections between the oxygen atoms, we inferred that the collapsed network of six-coordinated AlO6 octahedron clusters underlies the transport of high-frequency diffusons. Besides revealing the conductive pathways of heat-carrying modes in disordered lattices, topology-assisted spectral thermal transport analysis is useful for tailoring the thermal conductivities of amorphous materials.

    DOI: 10.1063/5.0200729

  • Anisotropic Thermal Conductivity Enhancement of the Aligned Metal–Organic Framework under Water Vapor Adsorption Reviewed

    Shingi Yamaguchi, Issei Tsunekawa, Makito Furuta, Chirag Anilkumar, Yuxuan Liao, Takuma Shiga, Takashi Kodama, Junichiro Shiomi

    The Journal of Physical Chemistry Letters   15 ( 25 )   6628 - 6633   2024.6 (   ISSN:1948-7185   eISSN:1948-7185 )

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society (ACS)  

    DOI: 10.1021/acs.jpclett.4c01244

  • Effect of bundling on phonon transport in single-walled carbon nanotubes Reviewed

    Takuma Shiga, Yukihiko Terada, Shohei Chiashi, Takashi Kodama

    Carbon   223   119048 - 119048   2024.4 (   ISSN:0008-6223 )

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.carbon.2024.119048

  • Phonon transport characteristics of α, β, and γ crystalline phases of magnesium hydride from first-principles-based anharmonic lattice dynamics Reviewed

    Takuma Shiga, Hiroshi Fujihisa, Yuzo Shigesato, Takashi Yagi

    Materials Today Communications   38   108192 - 108192   2024.3 (   ISSN:2352-4928 )

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.mtcomm.2024.108192

  • Topological descriptor of thermal conductivity in amorphous Si Invited Reviewed

    Emi Minamitani, Takuma Shiga, Makoto Kashiwagi, Ippei Obayashi

    The Journal of Chemical Physics   156 ( 24 )   244502 - 244502   2022.6 (   ISSN:0021-9606   eISSN:1089-7690 )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:AIP Publishing  

    Quantifying the correlation between the complex structures of amorphous materials and their physical properties has been a longstanding problem in materials science. In amorphous Si, a representative covalent amorphous solid, the presence of a medium-range order (MRO) has been intensively discussed. However, the specific atomic arrangement corresponding to the MRO and its relationship with physical properties, such as thermal conductivity, remains elusive. We solved this problem by combining topological data analysis, machine learning, and molecular dynamics simulations. Using persistent homology, we constructed a topological descriptor that can predict thermal conductivity. Moreover, from the inverse analysis of the descriptor, we determined the typical ring features correlated with both the thermal conductivity and MRO. The results could provide an avenue for controlling material characteristics through the topology of the nanostructures.

    DOI: 10.1063/5.0093441

  • Relationship between local coordinates and thermal conductivity in amorphous carbon Reviewed

    Emi Minamitani, Takuma Shiga, Makoto Kashiwagi, Ippei Obayashi

    Journal of Vacuum Science & Technology A   40 ( 3 )   033408 - 033408   2022.5 (   ISSN:0734-2101   eISSN:1520-8559 )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Vacuum Society  

    To determine the correlation between local structure and thermal conductivity of amorphous carbon, we investigated heat conduction in 216-atom systems with different densities (2.0–3.4 g/cm3) using the ab initio molecular dynamics approach. By applying the Allen–Feldman theory with interatomic force constants from ab initio calculations, we report a significant correlation between the thermal conductivity and the density. To clarify which structural characteristics in the high- and low-density cases determine the magnitude of thermal conductivity, we performed geometrical and topological analyses. Coordination number analysis and ring statistics revealed that the sp/sp2/sp3 bond ratios and topological characteristics correlate with density. We also demonstrated that these structural characteristics can be quantified using persistent homology analysis, providing a predictive model of thermal conductivity.

    DOI: 10.1116/6.0001744

  • First-principles calculations of phonon transport across a vacuum gap Reviewed

    Takuro Tokunaga, Masao Arai, Kazuaki Kobayashi, Wataru Hayami, Shigeru Suehara, Takuma Shiga, Keunhan Park, Mathieu Francoeur

    Physical Review B   105 ( 4 )   045410   2022.1 (   ISSN:2469-9950   eISSN:2469-9969 )

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Physical Society (APS)  

    DOI: 10.1103/PhysRevB.105.045410

    Other Link: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.105.045410/fulltext

  • Extreme near-field heat transfer between gold surfaces Reviewed

    Takuro Tokunaga, Amun Jarzembski, Takuma Shiga, Keunhan Park, Mathieu Francoeur

    Physical Review B   104 ( 12 )   125404   2021.9 (   ISSN:2469-9950   eISSN:2469-9969 )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Physical Society (APS)  

    DOI: 10.1103/PhysRevB.104.125404

    Other Link: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.104.125404/fulltext

  • Synergistic phonon scattering in epitaxial silicon multilayers with germanium nanodot inclusions Reviewed

    Takafumi Oyake, Lei Feng, Makoto Kashiwagi, Takuma Shiga, Takuma Hori, Suto Yamasaka, Yoshiaki Nakamura, Junichiro Shiomi

    Physical Review B   104 ( 5 )   2021.8 (   ISSN:2469-9950   eISSN:2469-9969 )

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    Language:Bengali   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/physrevb.104.054301

    Other Link: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.104.054301/fulltext

  • How mass disorder affects heat conduction in ternary amorphous alloys Reviewed

    Tatsuki Ichikawa, Emi Minamitani, Yuzo Shigesato, Makoto Kashiwagi, Takuma Shiga

    AIP Advances   11 ( 6 )   065026 - 065026   2021.6 (     eISSN:2158-3226 )

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:AIP Publishing  

    DOI: 10.1063/5.0051285

  • Surface phonons limit heat conduction in thin films Reviewed

    Michimasa Morita, Takuma Shiga

    Physical Review B   103 ( 19 )   195418   2021.5 (   ISSN:2469-9950   eISSN:2469-9969 )

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Physical Society (APS)  

    DOI: 10.1103/PhysRevB.103.195418

    Other Link: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.103.195418/fulltext

  • Anisotropic thermal conductivity measurement of organic thin film with bidirectional 3ω method Reviewed

    Shingi Yamaguchi, Takuma Shiga, Shun Ishioka, Tsuguyuki Saito, Takashi Kodama, Junichiro Shiomi

    Review of Scientific Instruments   92 ( 3 )   034902 - 034902   2021.3 (   ISSN:0034-6748   eISSN:1089-7623 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/5.0030982

  • Thermal conduction through individual cellulose nanofibers Reviewed

    Kento Adachi, Kazuho Daicho, Makito Furuta, Takuma Shiga, Tsuguyuki Saito, Takashi Kodama

    Applied Physics Letters   118 ( 5 )   053701 - 053701   2021.2 (   ISSN:0003-6951   eISSN:1077-3118 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/5.0042463

  • Ballistic phonon transport analysis of twisted graphene nanoribbons Reviewed

    Yukihiko TERADA, Takuma SHIGA

    Transactions of the JSME (in Japanese)   86 ( 892 )   20 - 00292   2020.12 (     eISSN:2187-9761 )

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    Authorship:Last author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Mechanical Engineers  

    DOI: 10.1299/transjsme.20-00292

  • One-directional thermal transport in densely aligned single-wall carbon nanotube films Reviewed

    Shingi Yamaguchi, Issei Tsunekawa, Natsumi Komatsu, Weilu Gao, Takuma Shiga, Takashi Kodama, Junichiro Kono, Junichiro Shiomi

    Applied Physics Letters   115 ( 22 )   223104   2019.11 (   ISSN:0003-6951 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/1.5127209

  • Hybrid Thermal Transport Characteristics of Doped Organic Semiconductor Poly(3,4-Ethylenedioxythiophene):Tosylate Reviewed

    Xiaoxiang Yu, Ruiyang Li, Takuma Shiga, Lei Feng, Meng An, Lifa Zhang, Junichiro Shiomi, Nuo Yang

    The Journal of Physical Chemistry C   123 ( 43 )   26735 - 26741   2019.10 (   ISSN:1932-7447   eISSN:1932-7455 )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society ({ACS})  

    DOI: 10.1021/acs.jpcc.9b09105

  • Enhancing Thermal Boundary Conductance of Graphite–Metal Interface by Triazine-Based Molecular Bonding Reviewed

    Aun Ota, Masato Ohnishi, Hisayoshi Oshima, Takuma Shiga, Takashi Kodama, Junichiro Shiomi

    ACS Applied Materials & Interfaces   11 ( 40 )   37295 - 37301   2019.10 (   ISSN:1944-8244   eISSN:1944-8252 )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Chemical Society ({ACS})  

    DOI: 10.1021/acsami.9b11951

  • Scalable Multi-nanostructured Silicon for Room-Temperature Thermoelectrics Reviewed

    Makoto Kashiwagi, Yuxuan Liao, Shenghong Ju, Asuka Miura, Shota Konishi, Takuma Shiga, Takashi Kodama, Junichiro Shiomi

    ACS Applied Energy Materials   2 ( 10 )   7083 - 7091   2019.9 (   ISSN:2574-0962   eISSN:2574-0962 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsaem.9b00893

  • Isolation of Single-Wired Transition-Metal Monochalcogenides by Carbon Nanotubes Reviewed

    Masataka Nagata, Shivani Shukla, Yusuke Nakanishi, Zheng Liu, Yung-Chang Lin, Takuma Shiga, Yuta Nakamura, Takeshi Koyama, Hideo Kishida, Tsukasa Inoue, Naoyuki Kanda, Shun Ohno, Yuki Sakagawa, Kazu Suenaga, Hisanori Shinohara

    Nano Letters   19 ( 8 )   4845 - 4851   2019.2 (   ISSN:1530-6984   eISSN:1530-6992 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.nanolett.8b05074

  • Modulating temperature dependence of thermal conductivity by nanostructuring Reviewed

    Takuma Shiga, Junichiro Shiomi

    Japanese Journal of Applied Physics   57 ( 12 )   120312   2018.11 (   ISSN:0021-4922   eISSN:1347-4065 )

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Applied Physics  

    DOI: 10.7567/jjap.57.120312

  • Akhiezer mechanism limits coherent heat conduction in phononic crystals Reviewed

    Yuxuan Liao, Takuma Shiga, Makoto Kashiwagi, Junichiro Shiomi

    Physical Review B   98 ( 13 )   2018.10 (   ISSN:2469-9950   eISSN:2469-9969 )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Physical Society ({APS})  

    DOI: 10.1103/physrevb.98.134307

  • Modeling Heat Conduction in Nanoporous Silicon with Geometry Distributions Reviewed

    Makoto Kashiwagi, Yuta Sudo, Takuma Shiga, Junichiro Shiomi

    Physical Review Applied   10 ( 4 )   2018.10 (   ISSN:2331-7019   eISSN:2331-7019 )

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    Publishing type:Research paper (scientific journal)   Publisher:American Physical Society ({APS})  

    DOI: 10.1103/physrevapplied.10.044018

  • Molecular dynamics study on heat conduction in poly(3,4-ethylenedioxythiophene) Reviewed

    Shunsuke Maeno, James J. Cannon, Takuma Shiga, Junichiro Shiomi

    Japanese Journal of Applied Physics   57 ( 10 )   101601 - 101601   2018.8 (   ISSN:0021-4922   eISSN:1347-4065 )

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:IOP Publishing  

    DOI: 10.7567/jjap.57.101601

    Other Link: http://stacks.iop.org/1347-4065/57/i=10/a=101601?key=crossref.68e6b5c9d689ba82ec4c9339b2ba921a

  • Thermal phonon engineering by tailored nanostructures Reviewed

    Masahiro Nomura, Junichiro Shiomi, Takuma Shiga, Roman Anufriev

    Japanese Journal of Applied Physics   57 ( 8 )   080101   2018.7 (   ISSN:0021-4922   eISSN:1347-4065 )

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    Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Applied Physics  

    DOI: 10.7567/jjap.57.080101

  • Revisiting PbTe to identify how thermal conductivity is really limited Reviewed

    Shenghong Ju, Takuma Shiga, Lei Feng, Junichiro Shiomi

    Physical Review B   97 ( 18 )   2018.5 (   ISSN:2469-9969   eISSN:2469-9969 )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Physical Society  

    DOI: 10.1103/PhysRevB.97.184305

  • Superlubrication by phonon confinement Reviewed

    Noriyuki Wada, Makoto Ishikawa, Takuma Shiga, Junichiro Shiomi, Masaru Suzuki, Kouji Miura

    Physical Review B   97 ( 16 )   161403(R)   2018.4 (   ISSN:2469-9969   eISSN:2469-9969 )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Physical Society  

    DOI: 10.1103/PhysRevB.97.161403

  • Ultimate Confinement of Phonon Propagation in Silicon Nanocrystalline Structure Reviewed

    Takafumi Oyake, Lei Feng, Takuma Shiga, Masayuki Isogawa, Yoshiaki Nakamura, Junichiro Shiomi

    Physical Review Letters   120 ( 4 )   045901   2018.1 (   ISSN:1079-7114   eISSN:1079-7114 )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Physical Society  

    DOI: 10.1103/PhysRevLett.120.045901

  • Phonon-interference resonance effects by nanoparticles embedded in a matrix Reviewed

    Lei Feng, Takuma Shiga, Haoxue Han, Shenghong Ju, Yuriy A. Kosevich, Junichiro Shiomi

    PHYSICAL REVIEW B   96 ( 22 )   220301(R)   2017.12 (   ISSN:2469-9950   eISSN:2469-9969 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.96.220301

  • Thermal rectification in restructured graphene with locally modulated temperature dependence of thermal conductivity Reviewed

    Anuj Arora, Takuma Hori, Takuma Shiga, Junichiro Shiomi

    PHYSICAL REVIEW B   96 ( 16 )   165419   2017.10 (   ISSN:2469-9950   eISSN:2469-9969 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.96.165419

  • Modulation of thermal and thermoelectric transport in individual carbon nanotubes by fullerene encapsulation Invited Reviewed

    Takashi Kodama, Masato Ohnishi, Woosung Park, Takuma Shiga, Joonsuk Park, Takashi Shimada, Hisanori Shinohara, Junichiro Shiomi, Kenneth E. Goodson

    Nature Materials   16 ( 9 )   892 - 897   2017.7 (   ISSN:1476-1122   eISSN:1476-4660 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/nmat4946

    Other Link: https://www.nature.com/articles/nmat4946

  • Designing Nanostructures for Phonon Transport via Bayesian Optimization Reviewed

    Shenghong Ju, Takuma Shiga, Lei Feng, Zhufeng Hou, Koji Tsuda, Junichiro Shiomi

    PHYSICAL REVIEW X   7 ( 2 )   021024   2017.5 (   ISSN:2160-3308 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevX.7.021024

  • Effects of defects on thermoelectric properties of carbon nanotubes Reviewed

    Masato Ohnishi, Takuma Shiga, Junichiro Shiomi

    PHYSICAL REVIEW B   95 ( 15 )   155405   2017.4 (   ISSN:2469-9950   eISSN:2469-9969 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.95.155405

  • Effects of phonon interference through long range interatomic bonds on thermal interface conductance Reviewed

    Haoxue Han, Lei Feng, Shiyun Xiong, Takuma Shiga, Junichiro Shiomi, Sebastian Volz, Yuriy A. Kosevich

    Low Temperature Physics   42 ( 8 )   711 - 716   2016.8 (   ISSN:1063-777X )

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Institute of Physics Inc.  

    DOI: 10.1063/1.4960498

  • Long-range interatomic forces can minimize heat transfer: From slowdown of longitudinal optical phonons to thermal conductivity minimum Reviewed

    Haoxue Han, Lei Feng, Shiyun Xiong, Takuma Shiga, Junichiro Shiomi, Sebastian Volz, Yuriy A. Kosevich

    PHYSICAL REVIEW B   94 ( 5 )   054306   2016.8 (   ISSN:2469-9950   eISSN:2469-9969 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.94.054306

  • Harmonic phonon theory for calculating thermal conductivity spectrum from first-principles dispersion relations Reviewed

    Takuma Shiga, Daisuke Aketo, Lei Feng, Junichiro Shiomi

    Applied Physics Letters   108 ( 20 )   201903   2016.5 (   ISSN:0003-6951   eISSN:1077-3118 )

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1063/1.4950851

  • Thermally induced nonlinear vibration of single-walled carbon nanotubes Reviewed

    Heeyuen Koh, James J. Cannon, Takuma Shiga, Junichiro Shiomi, Shohei Chiashi, Shigeo Maruyama

    PHYSICAL REVIEW B   92 ( 2 )   024306   2015.7 (   ISSN:2469-9950   eISSN:2469-9969 )

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    DOI: 10.1103/PhysRevB.92.024306

  • Phonon transport in perovskite SrTiO3 from first principles Reviewed

    Lei Feng, Takuma Shiga, Junichiro Shiomi

    APPLIED PHYSICS EXPRESS   8 ( 7 )   071501   2015.7 (   ISSN:1882-0778   eISSN:1882-0786 )

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    DOI: 10.7567/APEX.8.071501

  • Alloy composition of half-Heusler compounds for high thermoelectric performance Reviewed

    Keisuke YAMAMOTO, Takuma SHIGA, Junichiro SHIOMI

    Transactions of the JSME (in Japanese)   81 ( 824 )   14 - 00652   2015.4 (     eISSN:2187-9761 )

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Mechanical Engineers  

    DOI: 10.1299/transjsme.14-00652

  • Probing and tuning inelastic phonon conductance across finite-thickness interface Reviewed

    Takuru Murakami, Takuma Hori, Takuma Shiga, Junichiro Shiomi

    APPLIED PHYSICS EXPRESS   7 ( 12 )   121801   2014.12 (   ISSN:1882-0778   eISSN:1882-0786 )

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    DOI: 10.7567/APEX.7.121801

  • Scaling laws of cumulative thermal conductivity for short and long phonon mean free paths Reviewed

    Daisuke Aketo, Takuma Shiga, Junichiro Shiomi

    APPLIED PHYSICS LETTERS   105 ( 13 )   131901   2014.9 (   ISSN:0003-6951   eISSN:1077-3118 )

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    DOI: 10.1063/1.4896844

  • Origin of anomalous anharmonic lattice dynamics of lead telluride Reviewed

    Takuma Shiga, Takuru Murakami, Takuma Hori, Olivier Delaire, Junichiro Shiomi

    Applied Physics Express   7 ( 4 )   041801   2014.4 (   ISSN:1882-0778   eISSN:1882-0786 )

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    DOI: 10.7567/APEX.7.041801

  • Influence of mass contrast in alloy phonon scattering Reviewed

    Takuma Shiga, Takuma Hori, Junichiro Shiomi

    Japanese Journal of Applied Physics   53 ( 2 )   021802   2014.2 (   ISSN:0021-4922   eISSN:1347-4065 )

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    DOI: 10.7567/JJAP.53.021802

  • Thermal resistance and phonon scattering at the interface between carbon nanotube and amorphous polyethylene Reviewed

    Sho Hida, Takuma Hori, Takuma Shiga, James Elliott, Junichiro Shiomi

    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER   67   1024 - 1029   2013.12 (   ISSN:0017-9310   eISSN:1879-2189 )

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    DOI: 10.1016/j.ijheatmasstransfer.2013.08.068

  • Phonon transport analysis of silicon germanium alloys using molecular dynamics simulations Reviewed

    Takuma Hori, Takuma Shiga, Junichiro Shiomi

    JOURNAL OF APPLIED PHYSICS   113 ( 20 )   203514   2013.5 (   ISSN:0021-8979 )

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    DOI: 10.1063/1.4807301

  • Importance of local force fields on lattice thermal conductivity reduction in PbTe1-xSex alloys Reviewed

    Takuru Murakami, Takuma Shiga, Takuma Hori, Keivan Esfarjani, Junichiro Shiomi

    EPL   102 ( 4 )   46002   2013.5 (   ISSN:0295-5075 )

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    DOI: 10.1209/0295-5075/102/46002

  • Graphene-diamond hybrid structure as spin-polarized conducting wire with thermally efficient heat sinks Reviewed

    Takuma Shiga, Satoru Konabe, Junichiro Shiomi, Takahiro Yamamoto, Shigeo Maruyama, Susumu Okada

    Applied Physics Letters   100 ( 23 )   233101   2012.6 (   ISSN:0003-6951 )

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    DOI: 10.1063/1.4725485

  • Phonon conduction in PbSe, PbTe, and PbTe 1-xSe x from first-principles calculations Reviewed

    Zhiting Tian, Jivtesh Garg, Keivan Esfarjani, Takuma Shiga, Junichiro Shiomi, Gang Chen

    Physical Review B - Condensed Matter and Materials Physics   85 ( 18 )   184303   2012.5 (   ISSN:1098-0121   eISSN:1550-235X )

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    DOI: 10.1103/PhysRevB.85.184303

  • Microscopic mechanism of low thermal conductivity in lead telluride Reviewed

    Takuma Shiga, Junichiro Shiomi, Jie Ma, Olivier Delaire, Tomasz Radzynski, Andrzej Lusakowski, Keivan Esfarjani, Gang Chen

    Physical Review B   85 ( 15 )   155203   2012.4 (   ISSN:1098-0121   eISSN:2469-9969 )

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    DOI: 10.1103/PhysRevB.85.155203

  • Influence of Thermal Boundary Resistance and Interfacial Phonon Scattering on Heat Conduction of Carbon Nanotube/Polymer Composites Reviewed International coauthorship

    Sho HIDA, Takuma SHIGA

    TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B   78 ( 787 )   634 - 643   2012.3 (   ISSN:0387-5016   eISSN:1884-8346 )

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Mechanical Engineers  

    DOI: 10.1299/kikaib.78.634

  • Effect of bending buckling of carbon nanotubes on thermal conductivity of carbon nanotube materials Reviewed

    Alexey N. Volkov, Takuma Shiga, David Nicholson, Junichiro Shiomi, Leonid V. Zhigilei

    JOURNAL OF APPLIED PHYSICS   111 ( 5 )   053501   2012.3 (   ISSN:0021-8979   eISSN:1089-7550 )

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    DOI: 10.1063/1.3687943

  • Mode-Dependent Phonon Transport Analysis of Silicon Crystal by Molecular Dynamics Method Invited Reviewed

    Takuma HORI, Takuma SHIGA, Shigeo MARUYAMA, Junichiro SHIOMI

    TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B   78 ( 786 )   328 - 337   2012.2 (   ISSN:0387-5016   eISSN:1884-8346 )

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    DOI: 10.1299/kikaib.78.328

  • Thermal Conductance of Buckled Carbon Nanotubes Reviewed

    Fumio Nishimura, Takuma Shiga, Shigeo Maruyama, Kazuyuki Watanabe, Junichiro Shiomi

    JAPANESE JOURNAL OF APPLIED PHYSICS   51 ( 1 )   15102   2012.1 (   ISSN:0021-4922   eISSN:1347-4065 )

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1143/JJAP.51.015102

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MISC

  • Survery on the theory and approach for phonon thermal transport measurement Reviewed

    Takuma Shiga

    AIST Bulletin of Metrology   11 ( 2 )   281 - 290   2024.6

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

  • アモルファス材料の熱伝導率とトポロジカルデータ解析 Invited Reviewed

    南谷英美, 志賀拓麿, 柏木誠, 大林一平

    固体物理   58 ( 6 )   319 - 330   2023.6 (   ISSN:0454-4544 )

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)  

  • 第56回日本伝熱シンポジウム報告

    志賀拓麿

    日本熱電学会誌   16 ( 1 )   39 - 39   2019.8

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    Authorship:Lead author   Language:Japanese   Publishing type:Meeting report  

    DOI: 10.50972/thermoelectrics.16.1_TOC

  • DOPING EFFECTS ON THERMAL TRANSPORT PROPERTIES OF PEDOT Reviewed International coauthorship

    Xiaoxiang Yu, Ruiyang Li, Takuma Shiga, Lei Feng, Junichiro Shiomi, Nuo Yang

    International Heat Transfer Conference 16   17   6045 - 6051   2018.8 (   ISSN:2377-424X )

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (international conference proceedings)   Publisher:Begellhouse  

    DOI: 10.1615/ihtc16.mpe.022461

  • THERMAL CONDUCTIVITY OF POROUS MEDIA FROM PHONON TRANSPORT VIEWPOINT Reviewed

    Makoto Kashiwagi, Yuta Sudo, Takuma Hori, Takuma Shiga, Junichiro Shiomi

    Proceedings of the First Pacific Rim Thermal Engineering Conference, PRTEC   15130   2016.3

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    File: PRTEC-15130_kashiwagi.pdf

  • 第一原理熱伝導解析の現状と今後の展望

    志賀拓麿, 塩見淳一郎

    日本熱電学会誌   11 ( 3 )   15 - 17   2015.4

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    File: 02-4_特集-志賀_塩見.pdf

  • Thermal Conductivity Calculation of Magnesium Silicide Alloys by lattice Dynamics and Molecular Dynamics Methods Reviewed International coauthorship

    Takuma Shiga, Takuru Murakami, Takuma Hori, Keivan Esfarjani, Junichiro Shiomi

    Proceedings of the 15th International Heat Transfer Conference   41   7007 - 7013   2014.8

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    Magnesium silicide (Mg2Si) is a promising thermoelectric material for applications in the intermediate temperature regime. In addition, Mg2Si is environmentally friendly since it consists of non-toxic and highlyabundant elements. In this study, we calculated lattice thermal conductivity of pure and alloyed Mg2Si using anharmonic lattice dynamics and molecular dynamics methods based on the force fields extracted from firstprinciples. The lattice dynamics method is useful to deterministically calculate the intrinsic phonon scattering rates using Fermi's golden rule. On the other hand, molecular dynamics method has an advantage in the spontaneous implementation of the higher order anharmonicity and local disorders. The lattice thermal conductivities obtained by the two methods agreed with each other and also with the experiments. The agreement encourages the complementary approach using both lattice dynamics and molecular dynamics methods to investigate phonon transport in anharmonic and locally-disordered materials.

    DOI: 10.1615/ihtc15.ppe.009156

  • マグネシウムシリサイドの第一原理熱伝導解析

    志賀拓麿

    日本熱電学会誌   9 ( 2 )   7 - 9   2012.11

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Books

  • マイクロ・ナノ熱工学の進展

    志賀拓麿( Role: Contributor ,  フォノニック結晶)

    (株)エヌ・ティー・エス  2021.5 

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    Book type:Scholarly book

  • フォノンエンジニアリング : マイクロ・ナノスケールの次世代熱制御技術

    志賀拓麿( Role: Contributor ,  第2章 第5節 フォノン輸送のマルチスケール性)

    エヌ・ティー・エス  2017.9  ( ISBN:9784860435097

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    Total pages:14, vi, 245, 8p   Responsible for pages:163-177   Language:Japanese   Book type:Scholarly book

Presentations

  • Transport characteristics of heat-carrying diffusons in amorphous alumina with different densities Invited International conference

    Takuma Shiga, Emi Minamitani, Yuichiro Yamashita, Takashi Yagi, Naoyuki Taketoshi, Yuzo Shigesato, Makoto Kashiwagi

    10th US-Japan Joint Seminar  ( Coronado, CA )   2023.7 

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    Event date: 2023.7

    Language:English   Presentation type:Oral presentation (invited, special)  

  • アモルファス材のモーダル熱輸送解析の現状 Invited

    志賀拓麿

    第92回研究会  ( オンライン )   2022.3  日本学術振興会産学協力研究委員会 透明酸化物光・電子材料第166委員会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    アモルファスは結晶とは異なり並進対称性を有していないが、異なる周波数の複数の熱キャリアが存在することが明らかになっている。本講演ではアモルファスの熱輸送スペクトルを解析する手法、そしてアモルファスアルミナや三元系アモルファス合金、In-Ga-Zn-Oへの適用例を通じて、質量や力場の乱れが材料全体の熱伝導に与える影響について概説する。

    Other Link: http://conf.msl.titech.ac.jp/Conference3/CPEOM166/Kenkyukai.html

  • Heat conduction analysis for the development of thermal phononics Invited

    Takuma Shiga

    The 81st JSAP Autumn Meeting 2020  2020.9 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    File: JSAP2020_招待講演_志賀.pdf

  • Manipulation of thermal conductivity of material by nanostructure, interface, and local&non-local wave nature of phonon Invited International conference

    Takuma Shiga

    Recent Progress in the Physics of Thermal Transport  ( Izmir Institute of Technology Erdal Saygın Conference Hall )   2017.7 

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  • Contributions of coherent and incoherent phonons to heat conduction Invited International conference

    Takuma Shiga, Yuxuan Liao, Makoto Kashiwagi, Junichiro Shiomi

    9th US-Japan Joint Seminar on Nanoscale Transport Phenomena  ( KKR Hotel Tokyo, Tokyo, Japan )   2017.7 

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  • Heat conduction analysis from first principles Invited International conference

    Takuma Shiga

    Magnetics and Optics Research International Symposium (MORIS2015)  ( Toyohashi University of Technology – Universiti Sains Malaysia Technology Collaboration Centre in Penang, Malaysia )   2015.12 

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    Language:English   Presentation type:Oral presentation (invited, special)  

  • Investigation on Phonon Coherence for Heat Conduction Control Invited International conference

    Takuma Shiga, Junichiro Shiomi

    Twelfth International Conference on Flow Dynamics (ICFD2015)  ( Sendai International Center )   2015.10 

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  • Anormalous lattice dynamics of lead telluride arising from strong anharmonicity Invited International conference

    Takuma Shiga, Junichiro Shiomi

    8th US-Japan Joint Seminar on Nanoscale Transport Phenomena - Science and Engineering -  ( Chaminade Resort, Santa Cruz, CA, USA )   2014.7 

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  • Thermal properties of low- and high-pressure phases of indium iodides

    Takuma Shiga, Hiroshi Fujihisa

    第9回フォノンエンジニアリング研究会  2025.5 

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    Event date: 2025.5

    Language:Japanese   Presentation type:Poster presentation  

  • Control of thermal diffusion length in time-domain thermoreflectance measurement for probing quasi-ballistic phonon transport International conference

    Takuma Shiga, Yuichiro Yamashita, Takashi Yagi

    第62回日本伝熱シンポジウム/HTSJ国際伝熱シンポジウム  2025.5 

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    Event date: 2025.5

    Language:English   Presentation type:Oral presentation (general)  

  • Enhancement of thermal conductivity change induced by magneto-thermal resistance effect in Cu/CoFe magnetic multilayers International conference

    Fuya Makino, Takamasa Hirai, Takuma Shiga, Hirofumi Suto, Hiroshi Fujihisa, Koichi Oyanagi, Satoru Kobayashi, Taisuke Sasaki, Takashi Yagi, Ken-ichi Uchida, Yuya Sakuraba

    The 7th International Conference of Asian Union of Magnetics Societies (IcAUMS 2025)  2025.4 

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    Event date: 2025.4

    Language:English   Presentation type:Oral presentation (general)  

  • 長寿命励起状態を示す有機分子の熱輸送特性

    影山 凜, 竹原 陵介, 志賀 拓麿, 劉 芽久哉, 森川 淳子, 福島 孝典

    日本化学会 第105春季年会(2025)  ( 関西大学 千里山キャンパス )   2025.3  公益社団法人 日本化学会

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    Event date: 2025.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    C303-3am-09

  • When and how does perturbative van der Waals interactions degrade the thermal conductivity of carbon nanotubes? Implications for thermal engineering Invited International conference

    Takuma Shiga

    International Workshop on Thermal & Related Energy Systems (i-ENERON2025)  ( Nakamura Centenary Memorial Hall, Kyushu Institute of Technology )   2025.3 

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    Event date: 2025.3

    Language:English   Presentation type:Oral presentation (invited, special)  

  • Phonon transport characterization across diverse materials using high-frequency time-domain thermoreflectance International conference

    Takuma Shiga, Yuichiro Yamashita, Takashi Yagi

    The 1st A3 Nano & Thermal Energy Engineering Workshop  2025.1 

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    Event date: 2025.1

    Language:English   Presentation type:Poster presentation  

  • Thermal and Thermoelectric Measurement of SiC-based Microfibers International conference

    Akihiro Tamura, Daiki Fukumaru, Yu Sanematsu, Fumiya Kawahara, Asuka Miura, Takuma Shiga, Takashi Kodama

    12th International Symposium on Applied Engineering and Sciences (SAES2024)  2024.11 

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    Event date: 2024.11

    Language:English   Presentation type:Oral presentation (general)  

  • DFT計算によるMg2NiH4の圧力誘起相転移と高圧相構造の予測

    藤久裕司, 志賀拓麿, 八木貴志

    第65回高圧討論会  ( いわて県民情報センターアイーナ )   2024.11  日本高圧力学会

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    Event date: 2024.11

    Language:Japanese   Presentation type:Oral presentation (general)  

  • sp3系カーボン材料内包カーボンナノチューブの熱電評価特性 International coauthorship

    児玉 高志, 志賀 拓麿, Woosung Park, Joonsuk Park, Jinying Zhang, 篠原 久典, Kenneth E. Goodson

    第45回日本熱物性シンポジウム  ( アオーレ長岡 )   2024.10  日本熱物性学会

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    Event date: 2024.10

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 高圧における水素化マグネシウム系固体水素貯蔵材の第一原理熱伝導解析

    志賀 拓麿, 藤久 裕司, 重里 有三, 八木 貴志

    第45回日本熱物性シンポジウム  ( アオーレ長岡 )   2024.10  日本熱物性学会

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    Event date: 2024.10

    Language:Japanese   Presentation type:Oral presentation (general)  

  • SiC系マイクロファイバーの熱物性測定

    田村 陽太, 福丸 大輝, 實松 優, 川原 章弥, 三浦 飛鳥, 志賀 拓麿, 児玉 高志

    第45回日本熱物性シンポジウム  ( アオーレ長岡 )   2024.10  日本熱物性学会

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    Event date: 2024.10

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 二次元金属リントリカルコゲナイド積層体の第一原理フォノン特性解析

    志賀 拓麿, 藤久 裕司

    熱工学コンファレンス2024  ( KDDI維新ホール(山口県山口市) )   2024.10  日本機械学会

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    Event date: 2024.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    講演番号:H43

  • Enhancement of thermal conductivity change induced by magneto-thermal resistance effect in CoFe/Cu magnetic multilayers International conference

    F. MakinoT, HiraiT. ShigaH, SutoH. FujihisaK, OyanagiS. KobayashiT, SasakiT. YagiK, UchidaY. Sakurab

    The IEEE Around-the-Clock Around-the-Globe Magnetics Conference (AtC-AtG)  2024.10 

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    Event date: 2024.10

    Language:English   Presentation type:Oral presentation (general)  

  • Huge changes in thermal conductivity by magneto-thermal resistance effect in CoFe/Cu multilayer

    Fuya Makino, Takamasa Hirai, Takuma Shiga, Hirofumi Suto, Hiroshi Fujihisa, Koichi Oyanagi, Satoru Kobayashi, Taisuke Sasaki, Takashi Yagi, Ken-ichi Uchida, Yuya Sakurab

    The 48th Annual Conference on MAGNETICS in Japan  2024.9 

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    Event date: 2024.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • フォノン熱輸送スペクトル測定に向けた高周波変調時間領域サーモリフレクタンス法の開発

    志賀 拓麿, 山下 雄一郎, 八木 貴志

    第61回日本伝熱シンポジウム  ( 神戸コンベンションセンター )   2024.5 

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    Event date: 2024.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    講演番号:D231

  • Correlation between Heat Flow and Electrical Current across Four-layered MoS2 International conference

    Kan Ueji, Kaiyao Zhou, Takuma Shiga, Sota Nakamura, Hiroyuki Nishidome, Takashi Yagi, Yohei Yomogida, Takahiro Yamamoto, Yasumitsu Miyata, Kazuhiro Yanagi

    APS March Meeting 2024  ( Minneapolis & Virtual )   2024.3  American Physical Society |

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    Event date: 2024.3

    Language:English   Presentation type:Oral presentation (general)  

  • Numerical analysis of ballistic phonon transports in carbon nanotube bundles with different sizes and chirality combinations

    Takuma Shiga, Yukihiko Terada, Shohei Chiashi, Takashi Kodama

    2023.11 

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    Event date: 2023.11

    Language:Japanese   Presentation type:Oral presentation (general)  

  • Development of phonon thermal transport spectrum measurement by combining fast-periodic and picosecond-pulse heating

    Takuma Shiga, Yuichiro Yamashita, Takashi Yagi

    2023.10 

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    Event date: 2023.10

    Language:Japanese   Presentation type:Oral presentation (general)  

  • First-principles study on the cross-plane strain dependence of thermal conductivities of graphite intercalation compounds

    Takuma Shiga

    2023.8 

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    Event date: 2023.8

    Language:English   Presentation type:Poster presentation  

  • Topological descriptor of thermal conductivity in covalent amorphous solids Invited International conference

    Emi Minamitani, Takuma Shiga, Makoto Kashiwagi, Ippei Obayashi

    14th International Symposium on Atomic Level Characterizations for New Materials and Devices '22 (ALC '22)  ( Bankoku Shinryokan, Okinawa )   2022.10  The Division of Microbeam Analysis, The Japan Society of Vacuum and Surface Science (JVSS)

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    Event date: 2022.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  • Lattice dynamics study on the impacts of surface phonons and small-size air-hole on heat conduction in a two-dimensional phononic structure International conference

    Takuma Shiga

    The 13th Asian Thermophysical Properties Conference (ATPC2022)  ( Online )   2022.9 

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    Event date: 2022.9

    Language:English   Presentation type:Oral presentation (general)  

    File: ATPC2022_abstract_shiga.pdf

  • アモルファス物質の熱伝導率のパーシステントホモロジーによる解析 Invited

    大林一平, 南谷英美, 志賀拓麿, 柏木誠

    2022年度 統計関連学会連合大会  ( 成蹊大学 )   2022.9  統計関連学会連合

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  • One-dimensional electrical transport in single-walled carbon nanotube two-dimensional thin films International coauthorship International conference

    Shohei Chiashi, Hiroki Date, Takenori Fujii, Taiki Inoue, Esko I. Kauppinen, Keigo Otsuka, Shigeo Maruyama, Takuma Shiga, Takashi Kodama

    The 22nd International Conference on the Science and Applications of Nanotubes and Low-Dimensional Materials  ( Sungkyunkwan University in Suwon )   2022.6 

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    Event date: 2022.6

    Language:English   Presentation type:Poster presentation  

    Presentation ID: P2-I-16

  • Lattice dynamics analysis of the heat conduction suppression mechanism in ultra-small 2-dimensional phonic crystal

    Michimasa Morita, Takuma Shiga, Junichiro Shiomi

    2022.5 

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    Event date: 2022.5

    Language:Japanese   Presentation type:Poster presentation  

    File: morita_nhts59_manuscript.pdf

  • Modal analysis of spectral thermal conductivity of amorphous oxide alloys International conference

    Tatsuki Ichikawa, Emi Minamitani, Yuichiro Yamashita, Takashi Yagi, Yuzo Shigesato, Makoto Kashiwagi, Takuma Shiga

    Material Research Meeting 2021  ( PACIFICO YOKOHAMA )   2021.12  The Materials Research Society of Japan (MRS-Japan)

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    Event date: 2021.12

    Language:English   Presentation type:Oral presentation (general)  

    Program ID: D2-09-05

    Other Link: https://confit.atlas.jp/guide/event/mrm2021/subject/D2-O9-05/advanced

  • First-Principles Calculations of Acoustic Phonon Tunneling International coauthorship International conference

    ( Virtual Conference )   2021.6 

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    Event date: 2021.6

    Language:English   Presentation type:Oral presentation (general)  

    Paper Number: SHTC2021-69161

  • Numerical study on the thermal conductivity of ternary amorphous alloys based on the Allen-Feldman theory

    2021.5 

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    Event date: 2021.5

    Language:Japanese   Presentation type:Poster presentation  

  • Correlation between thermal conductivity and persistent homology in amorphous Si

    Emi Minamitani, Takuma Shiga, Ippei Obayashi, Makoto Kashiwagi

    The 68th JSAP Spering Meeting 2021  ( Online Virtual Meeting )   2021.3 

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    Event date: 2021.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    The decrease of lattice thermal conductivity in amorphous materials is originated from the scattering of phonons by structural disorders. However, it has been difficult to discuss the relationship between structural properties and thermal conductivity. In this study, we applied the persistent homology group, which is one of the techniques to extract topology in various numerical data, to investigate whether there is a correlation between topological information and thermal conductivity in amorphous Si.

    Other Link: https://doi.org/10.11470/jsapmeeting.2021.1.0_2995

  • Evaluation of density-dependent thermal conductivity of amorphous Al2O3 based on the Allen-Feldman theory

    Takuma Shiga, Emi Minamitani, Tatsuki Ichikawa, Chinami Abe, Yuichiro Yamashita, Takashi Yagi, Naoyuki Taketoshi, Yuzo Shigesato, Makoto Kashiwagi

    2020.10 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    File: shiga_jstp2020.pdf

  • Lattice dynamics analysis on temperature dependence of heat conduction suppression arising from the presence of surface phonon

    Michimasa Morita, Takuma Shiga

    2020.10 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    File: morita_jstp2020.pdf

  • Heat conduction analysis of two-dimensional phononic crystal by using the ray-tracing Monte Carlo method

    Tadanobu Sunago, Michimasa Morita, Takuma Hori, Makoto Kashiwagi, Takuma Shiga

    2020.10 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • Effects of cross-plane strain on heat conduction in graphite intercalation compounds

    Takuma Shiga, Takafumi Oyake, Rena Watanabe, Emi Minamitani, Susumu Okada

    2020.10 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • Molecular dynamics study on the dimensionality dependence of heat conduction of cellulose nanofibrils

    Makito Furuta, Kento Adachi, Kazuho Daicho, Tsuguyuki Saito, Takashi Kodama, Takuma Shiga

    2020.10 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • Thermal phonon engineering by tailored nanostructures Invited

    Masahiro Nomura, Junichiro Shiomi, Takuma Shiga, Roman Anufriev

    The 81st JSAP Autumn Meeting 2020  2020.9 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  • Heat conduction

    Shingi Yamguchi, Takuma Shiga, Takashi Kodama, Junichiro Shiomi

    The 81st JSAP Autumn Meeting 2020  2020.9 

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  • ねじれを含むグラフェンナノリボンの熱伝導解析

    寺田 行彦, 志賀 拓麿

    第57回 日本伝熱シンポジウム  ( 石川県地場産業振興センター )   2020.6  公益社団法人 日本伝熱学会

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    Event date: 2020.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    File: nhts57_Terada.pdf

  • Temperature dependence of surface phonon scattering on heat conduction in ultra-thin films

    Michimasa Morita, Takuma Shiga

    2020.6 

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    Language:Japanese   Presentation type:Poster presentation  

    File: nhts57_Morita.pdf

  • Study on effects of twist on phonon transport in graphene nanoribbons

    Yukihiko Terada, Takuma Shiga

    2020.3 

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    Language:Japanese   Presentation type:Poster presentation  

    File: fntg58_terada.pdf

  • Effect of Ioffe-Regel criterion on thermal conductivity of a-Al2O3

    Takuma Shiga, Emi Minamitani, Chinami Abe, Yuichiro Yamashita, Takashi Yagi, Naoyuki Taketoshi, Yuzo Shigesato, Makoto Kashiwagi

    2020.3 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    File: jsap_2020_shiga.pdf

  • Thermal conductivity measurment of orientated metal organic framework film with bidirectional 3ω method

    Shingi Yamaguchi, Takuma Shiga, Takashi Kodama, Junichiro Shiomi

    2020.3 

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    Event date: 2020.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Other Link: https://doi.org/10.11470/jsapmeeting.2020.1.0_3575

  • Numerical study on the transition from coherent to incoherent phonon transport in a superlattice International conference

    Tatsuki Ichikawa, Takuma Shiga

    Colorado Convention Center  ( Denver, CO )   2020.3 

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    Language:English   Presentation type:Oral presentation (general)  

    File: APS2020March_R62.00009.pdf

  • 極薄膜シリコンの非調和格子動力学解析

    森田 路真, 志賀 拓麿

    第40回日本熱物性シンポジウム  ( 長崎ブリックホール )   2019.10  日本熱物性学会

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  • 単層カーボンナノチューブに内包されたMoTeナノワイヤーのラマン散乱スペクトル

    中村 優斗, 小山 剛史, 永田 雅貴, 中西 勇介, 志賀 拓麿, 岸田 英夫

    日本物理学会 2019年秋季大会  ( 岐阜大学(柳戸キャンパス) )   2019.9  一般社団法人 日本物理学会

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  • Thermal transport study of molybdenum disulfide nanotubes by molecular dynamics simulations

    久間 馨, 志賀 拓麿, 岡田 晋, 千足 昇平, 丸山 茂夫

    第57回 フラーレン・ナノチューブ・グラフェン 総合シンポジウム  ( 名古屋大学 理学南館 坂田・平田ホール )   2019.9  フラーレン・ナノチューブ・グラフェン学会

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    Language:English   Presentation type:Poster presentation  

  • 分子動力学法を用いたセルロースナノファイバーの熱伝導解析

    古田蒔人, Isfeldt Gusten, 徐東郁, 志賀拓麿, 塩見淳一郎

    第56回日本伝熱シンポジウム  ( あわぎんホール 徳島県郷土文化会館 )   2019.5  公益社団法人 日本伝熱学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Other Link: http://htsj-conf.org/symp2019/index.html

  • Isolation of Single-wired Transition Metal Monochalcogenides by Carbon Nanotubes

    Yusuke Nakanishi, Masataka Nagata, Shivani Shukla, Zheng Liu, Yung-Chang Lin, Takuma Shiga, Yuto Nakamura, Takeshi Koyama, Hideo Kishida, Kazu Suenaga, Hisanori Shinohara

    第56回 フラーレン・ナノチューブ・グラフェン 総合シンポジウム  ( 東京大学 伊藤国際学術研究センター 伊藤謝恩ホール )   2019.3 

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    Event date: 2019.3

    Language:English   Presentation type:Oral presentation (general)  

    Other Link: https://fntg.jp/jp_new/symposium/sympo56/doc/fntg56_program_j_20190209.pdf

  • Doping effects on thermal transport properties of PEDOT International conference

    Xiaoxiang Yu, Ruiyang Li, Takuma Shiga, Lei Feng, Junichiro Shiomi, Nuo Yang

    16th International Heat Transfer Conference  ( Beijing, China )   2018.8 

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  • フラーレン分子の内包によるカーボンナノチューブの熱伝導性変調効果 International coauthorship

    児玉 高志, 大西 正人, Park Woosung, 志賀 拓麿, Park Joonsuk, 嶋田 行志, 篠原 久典, 塩見 淳一郎, Goodson Kenneth

    第55回日本伝熱シンポジウム  ( 札幌コンベンションセンター )   2018.5  公益社団法人 日本伝熱学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Other Link: http://htsj-conf.org/symp2018/files/program_20180524.pdf

  • ナノ構造制御による熱伝導率の温度依存性変調

    志賀 拓麿, 塩見淳一郎

    第55回日本伝熱シンポジウム  ( 札幌コンベンションセンター )   2018.5  公益社団法人 日本伝熱学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Other Link: http://htsj-conf.org/symp2018/files/program_20180524.pdf

  • 自己組織化手法による低熱伝導率バルクナノスケール構造シリコンの実現

    柏木 誠, 小西 翔太, 志賀 拓麿, 児玉 高志, 塩見淳一郎

    第55回日本伝熱シンポジウム  ( 札幌コンベンションセンター )   2018.5  公益社団法人 日本伝熱学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Other Link: http://htsj-conf.org/symp2018/files/program_20180524.pdf

  • Why Coherent Phonons Contributions to Thermal Conductivity of Phononic Crystals Cannot be Observed at Room Temperature International conference

    Yuxuan Liao, Takuma Shiga, Makoto Kashiwagi, Junichiro Shiomi

    Phonons 2018 & PTES 2018 Joint Conference  ( Nanjing, China )   2018.5 

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  • MoS2(0001)表面ナノアイランドでのフォノン潤滑2

    和田 範之, 石川 誠, 鈴木 勝, 佐々木 成朗, 塩見 淳一郎, 志賀 拓麿, 三浦 浩治

    2018年度日本物理学会第73回年次大会  ( 東京理科大学(野田キャンパス) )   2018.3  一般社団法人 日本物理学会

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    Language:Japanese   Presentation type:Poster presentation  

  • Mechanism of Coherence Heat Conduction in Phononic Crystal International conference

    Yuxuan Liao, Takuma Shiga, Makoto Kashiwagi, Junichiro Shiomi

    APS March Meeting 2018  ( Los Angeles, California )   2018.3 

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  • Recent development and trend of heat conduction analysis for nanostructured bulk and phononic crystals

    Takuma Shiga

    2018.3 

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    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  • 自己組織化を用いた低熱伝導率バルクシリコンの作製と熱電性能評価

    柏木誠, 小西翔太, 志賀拓麿, 児玉高志, 塩見淳一郎

    第38回日本熱物性シンポジウム  ( 産業技術総合研究所 つくばセンター 共用講堂 )   2017.11  日本熱物性学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Other Link: http://jstp2017.org/FinalProgram.pdf

  • 単結晶シリコン薄膜の面内熱伝導率の厚さ依存性の検証

    手島 健志, 児玉 高志, 柏木 誠, 志賀 拓麿, 塩見 淳一郎

    第38回日本熱物性シンポジウム  ( 産業技術総合研究所 つくばセンター 共用講堂 )   2017.11  日本熱物性学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Other Link: http://jstp2017.org/FinalProgram.pdf

  • Modulation of Thermoelectric Properties of Carbon Nanotubes using Defects and Strain International conference

    Masato Ohnishi, Takashi Kodama, Takuma Shiga, Junichiro Shiomi

    The 9th JSME-KSME Thermal and Fluids Engineering Conference (TFEC9)  ( Okinawa, Japan )   2017.10 

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  • MoS2(0001)表面ナノアイランドでのフォノン潤滑2

    和田 範之, 石川 誠, 鈴木 勝, 佐々木 成朗, 塩見 淳一郎, 志賀 拓麿, 三浦 浩治

    2017年度日本物理学会秋季大会  ( 宇都宮大学, 岩手大学 )   2017.9  一般社団法人 日本物理学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

  • MoS_2_(0001)表面ナノアイランドでのフォノン潤滑

    和田 範之, 石川 誠, 鈴木 勝, 佐々木 成朗, 塩見 淳一郎, 志賀 拓麿, 三浦 浩治

    2017年真空・表面科学合同講演会  ( 横浜市立大学金沢八景キャンパス )   2017.8  公益社団法人 日本表面科学会

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    Language:Japanese   Presentation type:Poster presentation  

    Other Link: http://www.sssj.org/annual/mtg2017/

  • グラフェンと金属の界面熱抵抗

    太田 アウン, 児玉 高志, 志賀 拓麿, 塩見淳一郎

    第54回日本伝熱シンポジウム  ( 大宮ソニックシティ )   2017.5  公益社団法人 日本伝熱学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Other Link: http://htsj-conf.org/symp2017/files/NHTS54%20program%20(final).pdf

  • 母材に埋め込まれたナノ粒子のフォノン共鳴効果 International coauthorship

    馮 磊, 志賀拓麿, Han Haoxue, Shenghong Ju, Kosevich, Yuriy A, 塩見淳一郎

    第54回日本伝熱シンポジウム  ( 大宮ソニックシティ )   2017.5  公益社団法人 日本伝熱学会

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Other Link: http://htsj-conf.org/symp2017/files/NHTS54%20program%20(final).pdf

  • Heat Conduction Analysis Involving th Effect Arising from Phono Coherence International conference

    Takuma Shiga, Junichiro Shiomi

    2017 MRS Spring Meeting & Exhibit  ( Phoenix, Arizona )   2017.4 

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  • Modulation of Thermoelectric Properties of Carbon Nanomaterials International conference

    Masato Ohnishi, Takashi Kodama, Takuma Shiga, Junichiro Shiomi

    2017 MRS Spring Meeting & Exhibit  ( Phoenix, Arizona )   2017.4 

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  • ベイズ最適化を用いた高性能熱電グラフェンナノリボン構造の探索

    山脇 柾, Ju Shenghong, 大西 正人, 志賀 拓麿, 塩見 淳一郎

    第64回応用物理学会春季学術講演会  ( パシフィコ横浜 )   2017.3  公益社団法人 応用物理学会

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  • カーボンナノチューブの熱電特性に及ぼす結晶乱れの影響

    大西 正人, 児玉 高志, 志賀 拓麿, 塩見 淳一郎

    第64回応用物理学会春季学術講演会  ( パシフィコ横浜 )   2017.3  公益社団法人 応用物理学会

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  • Designing Nanostructures for Interfacial Phonon Transport via Bayesian Optimization International conference

    Shenghong Ju, Takuma Shiga, Lei Feng, Zhufeng Hou, Koji Tsuda, Junichiro Shiomi

    2016 MRS Fall Meeting & Exhibit  ( Boston, Massachusetts )   2016.11 

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  • Fluctuation of Thermoelectric Properties of Carbon Nanotubes Invited International conference

    Masato Ohnishi, Takuma Shiga, Junichiro Shiomi

    Thirteenth International Conference on Flow Dynamics (ICFD2016)  ( Sendai International Center )   2016.10 

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  • Thermal conductivity and rectification study of nanostructured graphene International conference

    Anuj Arora, Makoto Kashiwagi, Fumiki Mitsuhashi, Takuma Hori, Takuma Shiga, Junichiro Shiomi

    The 11th Asian Thermophysical Properties Conference (ATPC)  ( Pacifico Yokohama Annex Hall, Japan )   2016.10 

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  • Desigining Nanostructures for Interfacial Phonon Transport via Bayesian Optimization

    Shenghong Ju, Takuma Shiga, Lei Feng, Zhufeng Hou, Koji Tsuda, Junichiro Shiomi

    第77回応用物理学会秋季学術講演会  ( 朱鷺メッセ )   2016.9  公益社団法人 応用物理学会

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  • 母材に埋め込めれたナノ粒子のフォノン共鳴効果

    馮 磊, 志賀 拓麿, Han Haoxue, Ju Shenghong, Kosevich A Yuriy, 塩見 淳一郎

    第77回応用物理学会秋季学術講演会  ( 朱鷺メッセ )   2016.9  公益社団法人 応用物理学会

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  • 熱伝導制御に向けた熱フォノンのコヒーレンス長の評価

    志賀 拓麿, 塩見 淳一郎

    第77回応用物理学会秋季学術講演会  ( 朱鷺メッセ )   2016.9  公益社団法人 応用物理学会

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  • Tuning phonon transport by nanostructures for thermoelectrics Invited International conference

    Junichiro Shiomi, Takuma Shiga

    The 17th International Conference on High Pressure in Semiconductor Physics (HPSP-17) & Workshop on High-pressure Study on Superconducting (WHS)  ( Sanjo Conference Hall )   2016.8 

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  • ナノポーラス構造シリコンの熱輸送特性

    柏木 誠, 須藤 裕太, 堀 琢磨, 志賀 拓麿, 塩見淳一郎

    第53回日本伝熱シンポジウム  ( グランキューブ大阪(大阪府立国際会議場) )   2016.5  公益社団法人 日本伝熱学会

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    Other Link: https://htsjconf.net/symp2016/files/Programme_final.pdf

  • 高性能熱電変換材料の探索に向けた格子熱伝導のモデリング

    志賀 拓麿, 明戸 大介, ライ フウ, 塩見 淳一郎

    第53回日本伝熱シンポジウム  ( グランキューブ大阪(大阪府立国際会議場) )   2016.5  公益社団法人 日本伝熱学会

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  • カーボンナノチューブの熱電性能に及ぼす局所変形と欠陥の影響

    大西 正人, 志賀 拓麿, 塩見 淳一郎

    第53回日本伝熱シンポジウム  ( グランキューブ大阪(大阪府立国際会議場) )   2016.5  公益社団法人 日本伝熱学会

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  • Effects of Defects and Strain on Thermoelectric Properties of Single-walled Carbon Nanotubes International conference

    Masato Ohnishi, Takuma Shiga, Juniciro Shiomi

    APS March Meeting 2016  ( Baltimore, Maryland )   2016.3 

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  • Thermal Conductivity of Porous Media from Phonon Transport Viewpoint International conference

    Makoto Kashiwagi, Yuta Sudo, Takuma Hori, Takuma Shiga, Junichiro Shiomi

    The First Pacific Rim Thermal Engineering Conference (PRTEC)  ( Waikoloa Beach Marriott Resort & Spa Hawaii's Big Island, USA )   2016.3 

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  • Thermal conductivity spectrum calculation from first-principles harmonic phonon theory

    志賀 拓麿, 明戸大介, Lei Feng, 塩見 淳一郎

    日本熱電学会 計算&データ研究会  ( 東京大学本郷キャンパス 山上会館 )   2016.3  一般社団法人 日本熱電学会

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  • 単層カーボンナノチューブの熱電性能に及ぼすひずみと欠陥の影響

    大西 正人, 志賀 拓麿, 塩見 淳一郎

    第7回マイクロ・ナノ工学シンポジウム  ( 朱鷺メッセ(新潟県新潟市) )   2015.10  一般社団法人 日本機械学会

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  • 高性能熱電変換材料の探索に向けた格子熱伝導率のモデリング

    志賀拓麿, 明戸大介, 馮磊, 塩見淳一郎

    第12回日本熱電学会学術講演会  ( 九州大学筑紫地区総合研究棟( C-Cube ) )   2015.9  一般社団法人日本熱電学会

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  • 第一原理に基づいたチタン酸ストロンチウムのフォノン輸送解析

    フウライ, 志賀拓麿, 塩見淳一郎

    12回日本熱電学会学術講演会  ( 九州大学筑紫地区総合研究棟(C-Cube) )   2015.9  一般社団法人日本熱電学会

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  • Thermal conductivity and rectification study of restructured Graphene International conference

    Anuj Arora, Fumiki Mitsuhashi, Takuma Hori, Takuma Shiga, Junichiro Shiomi

    The 15th International Conference on Phonon Scattering in Condensed Matter, Phonons 2015  ( Nottingham, United Kingdom )   2015.7 

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  • Phonon transport in perovskite SrTiO3 from first-principles International conference

    Lei Feng, Takuma Shiga, Junichiro Shiomi

    The 34st International Conference on Thermoelectrics (ICT2015)  ( International Congress Center Dresden, Dresden, Germany )   2015.6 

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  • Empirical model of heat conduction for a screening of high-performance thermoelectric materials International conference

    Takuma Shiga, Daisuke Aketo, Lei Feng, Junichiro Shiomi

    The 34st International Conference on Thermoelectrics (ICT2015)  ( International Congress Center Dresden, Dresden, Germany )   2015.6 

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  • 再構造化グラフェンの熱伝導および整流性

    アヌージ アローラ, 三橋 史樹, 堀 琢磨, 志賀 拓麿, 塩見 淳一郎

    第52回日本伝熱シンポジウム  ( 福岡国際会議場 )   2015.6  公益社団法人 日本伝熱学会

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    Event date: 2015.6

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 第一原理計算にもとづいたSrTiO3のフォノン輸送解析

    馮 磊, 志賀 拓麿, 塩見 淳一郎

    第52回日本伝熱シンポジウム  ( 福岡国際会議場 )   2015.6  公益社団法人 日本伝熱学会

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    Event date: 2015.6

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 熱伝導制御に向けたフォノンのコヒーレンス長の評価

    志賀 拓麿, 塩見 淳一郎

    第52回日本伝熱シンポジウム  ( 福岡国際会議場 )   2015.6  公益社団法人 日本伝熱学会

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    Event date: 2015.6

    Language:Japanese   Presentation type:Oral presentation (general)  

  • Spectral analysis of interfacial phonon transport across dissimilar crystalline solids International conference

    Takuma Shiga, Takuru Murakami, Junichiro Shiomi

    The 5th International Symposium on Micro and Nano Technology (ISMNT-5)  ( University of Calgary, Calgary, Canada )   2015.5 

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  • Effect of Bi and Sb Dopant on Lattice Thermal Conductivity in Melt Grown Mg2Si International conference

    Tsubasa Otsubo, Hideaki Otake, Takuma Shiga, Junichiro Shiomi, Masaru Itakura, Haruhiko Udono

    2015 MRS Spring Meeting & Exhibit  ( San Francisco )   2015.4 

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  • Effect of phonon-blocking at sintered interfaces Invited International conference

    Takuma Shiga, Junichiro Shiomi

    APS March Meeting 2015  ( San Antonio, Texas )   2015.3 

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  • 分子動力学シミュレーションを用いたPEDOTの熱伝導解析

    前野 俊介, カノン ジェームス, 志賀 拓麿, 塩見 淳一郎

    日本機械学会 熱工学コンファレンス2014  ( 芝浦工業大学 豊洲キャンパス )   2014.11  一般社団法人 日本機械学会

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  • Mg2Si結晶中のSb,Bi不純物による格子欠陥が及ぼす影響

    大竹 秀明, 大坪 翼, 志賀 拓麿, 塩見 淳一郎, 板倉 賢, 鵜殿 治彦

    第11回日本熱電学会学術講演会  ( 独立行政法人物質・材料研究機構千現地区管理棟 )   2014.9  一般社団法人日本熱電学会

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  • ナノ構造化熱電材料のスクリーニングに向けた累積熱伝導率のモデル化

    明戸 大介, 志賀 拓麿, 塩見 淳一郎

    第11回日本熱電学会学術講演会  ( 独立行政法人物質・材料研究機構千現地区管理棟 )   2014.9  一般社団法人 日本熱電学会

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  • Thermal Conductivity Calculation of Magnesium Silicide Alloys by lattice Dynamics and Molecular Dynamics Methods International conference

    Takuma Shiga, Takuru Murakami, Takuma Hori, Keivan Esfarjani, Junichiro Shiomi

    The 15th International Heat Transfer Conference (IHTC-15)  ( Kyoto International Conference Center )   2014.8 

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  • Phonon transport calculations of crystals with strong anharmonicity, disorder, interfaces, and nano structures Invited International conference

    Junichiro Shiomi, Takuru Murakami, Takuma Hori, Takuma Shiga

    8th US-Japan Joint Seminar on Nanoscale Transport Phenomena - Science and Engineering -  ( Chaminade Resort, Santa Cruz, CA, USA )   2014.7 

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  • マグネシウムシリサイド合金結晶の格子熱伝導解析

    志賀 拓麿, 村上 拓, 塩見 淳一郎

    第51回日本伝熱シンポジウム  ( アクトシティ浜松(浜松)コングレスセンター )   2014.5  公益社団法人 日本伝熱学会

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  • ナノ構造や界面フォノン輸送物性にもとづく熱伝導制御ストラテジ

    塩見 淳一郎, 志賀 拓麿, 堀 琢磨, 小宅 教文, 村上 拓, 坂田 昌則, 三浦 飛鳥

    第51回日本伝熱シンポジウム  ( アクトシティ浜松(浜松)コングレスセンター )   2014.5  公益社団法人 日本伝熱学会

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  • 累積熱伝導率モデルを用いたナノ構造化熱電材料のスクリーニング

    明戸 大介, 志賀 拓麿, 塩見 淳一郎

    第51回日本伝熱シンポジウム  ( アクトシティ浜松(浜松)コングレスセンター )   2014.5  公益社団法人 日本伝熱学会

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  • バルクナノ構造化熱電材料における界面構造のフォノン輸送への影響

    村上拓, 堀 琢磨, 志賀 拓麿, 塩見 淳一郎

    第5回マイクロ・ナノ工学シンポジウム  ( 仙台国際センター(宮城県仙台市) )   2013.11  一般社団法人 日本機械学会

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  • Heat Conduction of Alloyed Thermoelectric Materials and Its Structure Dependence International conference

    Takuma Shiga, Takuru Murakami, Junichiro Shiomi

    The 4th International Symposium Micro and Nano Technology (ISMNT-4)  ( Shanghai Second Polytechnic University, Shanghai, China )   2013.10 

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  • Investigations of the lattice thermal conductiivty of Mg2Si from first principles International conference

    Takuma Shiga, Takuru Murakami, Takuma Hori, Keivan Esfarjani, Gang Chen, Junichiro Shiomi

    The 32nd International Conference on Thermoelectrics (ICT2013)  ( Kobe International Conference Center )   2013.7 

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  • 中温領域用の熱電変換材料の第一原理熱伝導解析 International coauthorship

    志賀 拓麿, Keivan Esfarjani, 村上 拓, 堀 琢磨, Gang Chen, 塩見 淳一郎

    第50回日本伝熱シンポジウム  ( ウェスティンホテル仙台およびトラスシティカンファレンス・仙台 )   2013.5  公益社団法人 日本伝熱学会

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  • モンテカルロ法を用いたナノ構造化熱電材料の格子熱伝導解析

    堀琢磨, 志賀拓麿, 塩見淳一郎

    第4回マイクロ・ナノ工学シンポジウム  ( 国際会議場・西日本総合展示場 )   2012.10  一般社団法人 日本機械学会

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  • 第一原理に基づいた非調和格子動力学法及び分子動力学法による熱電変換材料の熱伝導解析 International coauthorship

    志賀 拓麿, 村上 拓, 堀 琢磨, Keivan Esfarjani, Gang Chen, 塩見 淳一郎

    第4回マイクロ・ナノ工学シンポジウム  ( 北九州国際会議場・西日本総合展示場 )   2012.10  一般社団法人 日本機械学会

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  • 分子動力学法によるPbTe1-xSexの格子熱伝導解析

    村上 拓, 志賀 拓麿, 堀 琢磨, Zhiting Tian, Keivan Esfarjani, Gang Chen, 塩見 淳一郎

    第9回日本熱電学会学術講演会  ( 東京工業大学蔵前会館 )   2012.8  一般社団法人 日本熱電学会

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  • マグネシウムシリサイドの第一原理熱伝導解析

    志賀 拓麿, Keivan Esfarjani, Gang Chen, 塩見 淳一郎

    第9回日本熱電学会学術講演会  ( 東京工業大学蔵前会館 )   2012.8  一般社団法人 日本熱電学会

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  • Probing phonon transport properties of silicon germanium alloy crystals by molecular dynamics International conference

    Takuma Hori, Takuma Shiga, Junichiro Shiomi

    The 31st International & 10th European Conference on Thermoelectrics  ( Aalborg, Denmark )   2012.7 

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  • Molecular dynamics study on lattice thermal conductivity of PbTe1-xSex alloys International conference

    Takuru Murakami, Takuma Shiga, Takuma Hori, Zhiting Tian, Keivan Esfarjani, Gang Chen, Junichiro Shiomi

    The 31st International & 10th European Conference on Thermoelectrics  ( Aalborg, Denmark )   2012.7 

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  • Low Thermal Conductivity of Lead Selenide and Lead Telluride from First Principles International conference

    Zhiting Tian, Jivtesh Garg, Keivan Esfarjani, Takuma Shiga, Junichiro Shiomi, Gang Chen

    ASME 2012 Summer Heat Transfer Conference  ( Wyndham Rio Mar Beach Resort, Puerto Rico )   2012.7  ASME

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  • Microscopic mechanism of low thermal conductivity in lead terullide International conference

    Takuma Shiga, Takuru Murakami, Takuma Hori, Jie Ma, Olivier Delaire, Keivan Esfarjani, Gang Chen, Junichiro Shiomi

    The 31st International & 10th European Conference on Thermoelectrics  ( Aalborg, Denmark )   2012.7 

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  • 分子動力学法による合金化したシリコン結晶のフォノン輸送解析

    堀 琢磨, 志賀 拓麿, 丸山 茂夫, 塩見淳一郎

    第49回日本伝熱シンポジウム  ( 富山国際会議場 )   2012.6  公益社団法人 日本伝熱学会

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  • 摂動論的アプローチによる合金結晶のフォノン輸送解析

    志賀 拓麿, 堀 琢磨, 丸山 茂夫, 塩見淳一郎

    第49回日本伝熱シンポジウム  ( 富山国際会議場 )   2012.6  公益社団法人 日本伝熱学会

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  • Investigation of phonon mass-difference scattering model by molecular dynamics International conference

    Takuma Shiga, Takuma Hori, Takuru Murakami, Shigeo Maruyama, Junichiro Shiomi

    APS March Meeting 2012  ( Boston, Massachusetts )   2012.3 

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  • Phonon Conduction in Lead Selenide from First Principles International conference

    Zhiting Tian, Jivtesh Garg, Keivan Esfarjani, Takuma Shiga, Junichiro Shiomi, Gang Chen

    2011 MRS Fall Meeting & Exhibit  ( Boston )   2011.11 

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  • カーボンナノチューブ・ポリマー複合材の異方性熱伝導に関する分子動力学 International coauthorship

    飛田 翔, 志賀 拓麿, 丸山 茂夫, James A. Elliott, 塩見 淳一郎

    第3回マイクロ・ナノ工学シンポジウム  ( タワーホール船堀 )   2011.9  一般社団法人 日本機械学会

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  • 第一原理に基づいた熱電変換材料の熱伝導解析 International coauthorship

    塩見 淳一郎, 志賀 拓麿, Keivan Esfarjani, Gang Chen

    第3回マイクロ・ナノ工学シンポジウム  ( タワーホール船堀 )   2011.9  一般社団法人 日本機械学会

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  • 分子動力学を用いたシリコン結晶のフォノン輸送解析

    堀 琢磨, 志賀 拓麿, 丸山 茂夫, 塩見 淳一郎

    第3回マイクロ・ナノ工学シンポジウム  ( タワーホール船堀 )   2011.9  一般社団法人 日本機械学会

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  • 合金結晶のフォノン輸送の分子動力学解析

    志賀 拓麿, 堀 琢磨, 丸山 茂夫, 塩見 淳一郎

    第3回マイクロ・ナノ工学シンポジウム  ( タワーホール船堀 )   2011.9  一般社団法人 日本機械学会

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  • 第一原理計算による鉛テルライドのフォノン伝導解析 International coauthorship

    志賀 拓麿, 塩見 淳一郎, Keivan Esfarjani, Gang Chen

    第72回応用物理学会学術講演会  ( 山形大学 小白川キャンパス )   2011.8  公益社団法人 応用物理学会

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  • 第一原理に基づく結晶熱電材料の格子熱伝導解析

    塩見 淳一郎, 志賀 拓麿, Keivan Esfarjani, Gang Chen

    第8回日本熱電学会学術講演会  ( 北海道大学学術交流会館 )   2011.8  一般社団法人 日本熱電学会

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    Event date: 2011.8

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  • シリコンにおけるフォノン輸送の分子動力学解析

    堀 琢磨, 志賀 拓麿, 丸山 茂夫, 塩見 淳一郎

    第48回日本伝熱シンポジウム  ( 岡山 )   2011.6  公益社団法人 日本伝熱学会

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  • 第一原理に基づいた鉛テルライドのフォノン伝導解析

    志賀 拓麿, 塩見 淳一郎, Keivan Esfarjani, Gang Chen

    第48回日本伝熱シンポジウム  ( 岡山 )   2011.6  公益社団法人 日本伝熱学会

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  • Spectral Phonon Transport Properties of Thermoelectric Materials from First-Principles Calculations International conference

    Keivan Esfarjani, Zhiting Tian, Takuma Shiga, Tengfei Luo, Junichiro Shiomi, Jivtesh Garg, Olivier Delaire, Gang Chen

    Science for our Nation’s Energy Future: EFRC forum  ( Washington D. C. )   2011.5 

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  • Molecular dynamics simulation of phonon conduction in alloy crystals International conference

    Takuma Shiga, Takuma Hori, Shigeo Maruyama, Junichiro Shiomi

    2011 MRS Spring Meeting & Exhibit  2011.4 

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Other research activities

  • 【プレスリリース】アモルファス構造のトポロジーから熱伝導率を予測する技術を開発 -ミクロな構造と材料機能の相関解明に期待-

    2022.6

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    分子研:https://www.ims.ac.jp/news/2022/06/220624.html
    JST:https://www.jst.go.jp/pr/announce/20220623/index.html