Takuma Shiga

Education

• Ph.D. Engineering, The University of Tokyo (2013)
• M.S., Physics, Tokyo University of Science (2010)
• B.S., Physics, Tokyo University of Science (2008)

Appointments

• Sep. 2025 – Present: Associate Professor, Toyota Technological Institute
• Apr. 2022 – Aug. 2025: Senior Researcher, National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
• May 2018 – Mar. 2022: Lecturer (Full-time), Department of Mechanical Engineering, The University of Tokyo
• Oct. 2017 – Mar. 2021: PRESTO Researcher, Japan Science and Technology Agency (JST)
• Feb. 2014 – May 2018: Assistant Professor, Department of Mechanical Engineering, The University of Tokyo
• Apr. 2013 – Jan. 2014: JSPS Research Fellow (PD) — Research Fellowships for Young Scientists, Japan Society for the Promotion of Science (JSPS)
• Apr. 2012 – Mar. 2013: JSPS Research Fellow (DC2) — Research Fellowships for Young Scientists, Japan Society for the Promotion of Science (JSPS)

Research Interests

• Thermal transport
• Thermal management for semiconductors & advanced packaging
• Thermal management for electric vehicles

Awards & Honors

• Oct. 2024: Best Paper Award, Japan Society of Thermophysical Properties
• May 2024: Touri Award (Outstanding Young Researcher Award) of the Heat Transfer Society of Japan
• Sep. 2022: ATPC Young Scientist Award, The 13th Asian Thermophysical Properties Conference (ATPC2022)
• Apr. 2021: The Young Scientists’ Award, Minister of Education, Culture, Sports, Science and Technology of Japan
• Sep. 2020: Award for Best Review Paper, Thermal phonon engineering by tailored nanostructures, The Japan Society of Applied Physics
• May 2016: Scientific Contribution Award of the Heat Transfer Society of Japan, The Heat Transfer Socienty of Japan
• Mar. 2013: Deen’s Award, The University of Tokyo
• Aug. 2012: [Presentation Award, Thermoelectric Society of Japan](Presentation Award, Thermoelectric Society of Japan)
• Jun. 2011: 2011 MRS Spring Meeting and Exhibit Best Poster Award Nominee, Material Research Society
• Jun. 2011: Best Presentation Award, The Heat Transfer Society of Japan

Publications

* indicates corresponding author(s).

Review Articles

1. Masahiro Nomura^*, Junichiro Shiomi^*, Takuma Shiga, and Roman Anufriev,
   Thermal phonon engineering by tailored nanostructures,
   Japanese Journal of Applied Physics 57, 080101(1-11) (2018). [invited review]
   https://doi.org/10.7567/JJAP.57.080101

Refereed Papers

1. Shun-ichiro Ito, Kan Ueji, Shigeki Saito, Takuma Shiga, Satoshi Kusaba, Takashi Yagi, Shun Watanabe, Taishi Takenobu, and Kazuhiro Yanagi^*,
   Modulation of Heat Flow via Electrochemical Doping in Conducting Polymer PBTTT,
   Communication Materials Published online (2026).
   https://doi.org/10.1038/s43246-026-01151-8
2. Takuma Shiga^*, Yoshikazu Mizuguchi, and Hiroshi Fujihisa,
   Anharmonic lattice dynamics study of phonon transport in layered and molecular-crystal indium iodides,
   Journal of Physics D: Applied Physcs 59(10), 105303 (2026).
   https://doi.org/10.1088/1361-6463/ae4a36
   Preprint: arXiv:2601.01766
3. Seohee Jang, Seung-Woo Jeon, Takuma Shiga, Jeeyong Shin, Sangwook Han, and Woosung Park^*,
   Thermally Modulated Specular Phonon Transport in a High-Debye-Temperature Diamond Nanobeam,
   Advanced Science XX(XX), XX (2026).
   https://doi.org/10.1002/advs.202523242
4. Kosuke Yamazaki, Takuma Shiga, Kumpei Shiraishi, and Emi Minamitani^*,
   Topological descriptor for interpretable thermal transort prediction in amorphous graphene,
   Science and Technology of Advanced Materials: Methods 6(1), 2623676(1-12) (2026).
   https://doi.org/10.1080/27660400.2026.2623676
   Preprint: arXiv:2512.13112
5. Fuya Makino, Takamasa Hirai^*, Takuma Shiga, Hirofumi Suto, Hiroshi Fujihisa, Koichi Oyanagi, Satoru Kobayashi, Taisuke Sasaki, Takashi Yagi, Ken-ichi Uchida, and Yuya Sakuraba^*,
   Magnetothermal resistance effect in a Co₅₀Fe₅₀/Cu multilayer studied via analysis of electron and lattice thermal conductivities,
   Physical Review B 112(5), 054407(1-9) (2025).
   https://doi.org/10.1103/pd57-gcd5
   Preprint: arXiv:2505.09195
6. Poonam Rani, Yuto Watanabe, Takuma Shiga, Yuya Sakuraba, Hikaru Takeda, Minoru Yamashita, Ken-ichi Uchida, Aichi Yamashita, and Yoshikazu Mizuguchi^*,
   Huge anisotropic magneto-thermal switching in high-purity polycrystalline compensated metals,
   Materials Today Electronics 13, 100165(1-6) (2025).
   https://doi.org/10.1016/j.mtelec.2025.100165
   Preprint: arXiv:2506.00427
7. Takuma Shiga^*, Takashi Yagi, and Hiroshi Fujihisa,
   Intrinsic thermal conductivity of Mg₂NiH₄ at high pressures: A first-principles study,
   International Journal of Thermophysics 46(8), 115(1-15) (2025).
   https://doi.org/10.1007/s10765-025-03587-5
8. Takuma Shiga^*, Takashi Yagi, and Hiroshi Fujihisa^*,
   Structural phase transitions of Mg₂NiH₄ induced by NiH₄ molecular ion distortion and metal lattice deformation under high pressures,
   Inorganic Chemistry 63(44), 21121-21129 (2024).
   https://doi.org/10.1021/acs.inorgchem.4c03336
9. Takuma Shiga^*,‡, Yukihiko Terada^‡, Takashi Kodama, Shohei Chiashi, (‡ Equal contribution)
   Influence of perturbative intertube interactions on ballistic and quasi-ballistic phonon transports in double-walled carbon nanotubes,
   International Journal of Heat and Mass Transfer 233, 126030(1-10) (2024).
   https://doi.org/10.1016/j.ijheatmasstransfer.2024.126030
10. Kaiyao Zhou, Kan Ueji^*, Takuma Shiga, Hiroyuki Nishidome, Shigeki Saito, Sota Nakamura, Takahiko Endo, Yohei Yomogida, Yasumitsu Miyata, Junei Kobayashi, Takahiro Yamamoto, Takashi Yagi, and Kazuhiro Yanagi^*,
    Correlation between the cross-plane thermal and electrical conductance in randomly stacked MoS₂,
    ACS Applied Electronic Materials 6(8), 5934-5941 (2024).
    https://doi.org/10.1021/acsaelm.4c00911
11. Takuma Shiga^*, Emi Minamitani^*, Yuichiro Yamashita, Takashi Yagi, Naoyuki Taketoshi, Yuzo Shigesato, and Makoto Kashiwagi^*,
    Thermal transport and topological analyses of the heat-carrying modes and their relevant local structures in variously dense amorphous alumina,
    Applied Physics Letters 125(1), 012201(1-6) (2024).
    https://doi.org/10.1063/5.0200729
12. Shingi Yamaguchi, Issei Tsunekawa, Makito Furuta, Chirag Anilkumar, Yuxuan Liao, Takuma Shiga, Takashi Kodama, and Junichiro Shiomi^*,
    Anisotropic Thermal Conductivity Enhancement of Aligned Metal-Organic Framework under Water Vapor Adsorption,
    The Journal of Physical Chemistry Letters 15(25), 6628-6633 (2024).
    https://doi.org/10.1021/acs.jpclett.4c01244
13. Takuma Shiga^*,‡, Yukihiko Terada^‡, Shohei Chiashi, and Takashi Kodama (‡ Equal contribution)
    Effect of bundling on phonon transport in single-walled carbon nanotubes,
    Carbon 223, 119048(1-8) (2024).
    https://doi.org/10.1016/j.carbon.2024.119048
14. Takuma Shiga^*, Hiroshi Fujihisa, Yuzo Shigesato, and Takashi Yagi,
    Phonon transport characteristics of α, β, and γ crystalline phases of magnesium hydride from first-principles-based anharmonic lattice dynamics,
    Materials Today Communication 38, 108192(1-9) (2024).
    https://doi.org/10.1016/j.mtcomm.2024.108192
15. Emi Minamitani^*, Takuma Shiga, Makoto Kashiwagi, and Ippei Obayashi,
    Topological descriptor of thermal conductivity in amorphous Si,
    The Journal of Chemical Physics 156(24), 244502(1-13) (2022).
    https://doi.org/10.1063/5.0093441
    Preprint: arXiv:2107.05865
16. Emi Minamitani^*, Takuma Shiga, Makoto Kashiwagi, and Ippei Obayashi,
    Relationship between local coordinates and thermal conductivity in amorphous carbon,
    Journal of Vacuum Science & Technology A 40(3), 033408(1-13) (2022).
    https://doi.org/10.1116/6.0001744
17. Takuro Takunaga, Masao Arai, Kazuaki Kobayashi, Wataru Hayami, Shigeru Suehara, Takuma Shiga^*, Keunhan Park^*, and Mathieu Francouer^*,
    First-principles calculations of phonon transport across a vacuum gap,
    Physical Review B 105(4), 045410(1-8) (2022).
    https://doi.org/10.1103/PhysRevB.105.045410
    Preprint: arXiv:2110.14050
18. Takuro Tokunaga, Amun Jarzembski, Takuma Shiga, Keunhan Park^*, and Mathieu Francoeur^*,
    Extreme Near-Field Heat Transfer Between Gold Surfaces,
    Physical Review B 104(12), 125404(1-7) (2021).
    https://doi.org/10.1103/PhysRevB.104.125404
    Preprint: arXiv:2102.04575
19. Takafumi Oyake, Lei Feng, Makoto Kashiwagi, Takuma Shiga, Takuma Hori, Suto Yamasaka, Yoshiaki Nakamura, and Junichiro Shiomi^*,
    Synergistic phonon scattering in epitaxial silicon multilayers with germanium nanodot inclusions,
    Physical Review B 104(5), 054301(1-7) (2021).
    https://doi.org/10.1103/PhysRevB.104.054301
20. Tatsuki Ichikawa, Emi Minamitani, Yuzo Shigesato, Makoto Kashiwagi, and Takuma Shiga^*,
    How mass disorder affects heat conduction in ternary amorphous alloys,
    AIP Advances 11(6), 065206(1-6) (2021).
    https://doi.org/10.1063/5.0051285
21. Michimasa Morita and Takuma Shiga^*,
    Surface phonons limit heat conduction in thin films,
    Physical Review B 103(19), 195418(1-12) (2021).
    https://doi.org/10.1103/PhysRevB.103.195418
    Preprint: arXiv:2008.11078
22. Shingi Yamaguchi, Takuma Shiga, Shun Ishioka, Tsuguyuki Saito, Takashi Kodama, and Junichiro Shiomi^*,
    Anisotropic Thermal Conductivity Measurement of Organic Thin Film with Bidirectional 3ω method,
    Review of Scientific Instruments 92(3), 034902(1-6) (2021).
    https://doi.org/10.1063/5.0030982
    Preprint: arXiv:2103.00856
23. Kento Adachi, Kazuho Daicho, Makito Furuta, Takuma Shiga, Tsuguyuki Saito, and Takashi Kodama^*,
    Thermal conduction through individual cellulose nanofibers,
    Applied Physics Letters 118(5), 053701(1-5) (2021).
    https://doi.org/10.1063/5.0042463
24. Shingi Yamaguchi, Issei Tsunekawa, Natsumi Komatsu, Weilu Gao, Takuma Shiga, Takashi Kodama, Junichiro Kono^*, and Junichiro Shiomi^*,
    One-dimensional thermal transport in densely aligned single-wall carbon nanotube films,
    Applied Physics Letters 115(22), 223104(1-5) (2019).
    https://doi.org/10.1063/1.5127209
    Preprint: arXiv:1911.11340
25. Xiaoxiang Yu, Ruiyang Li, Takuma Shiga, Lei Feng, Meng An, Lifa Zhang, Junichiro Shiomi^*, and Nuo Yang^*,
    Hybrid Thermal Transport Characteristics of Doped Organic Semiconductor Poly(3,4-ethylenedioxythiophene):Tosylate,
    The Journal of Physical Chemistry 123(43), 26735-26741 (2019).
    https://doi.org/10.1021/acs.jpcc.9b09105
26. Aun Ota, Masato Ohnishi, Hisayoshi Oshima, Takuma Shiga, Takashi Kodama, Junichiro Shiomi^*,
    Enhancing thermal boundary conductance of graphite-metal interface by triazine-based molecular bonding,
    ACS Applied Materials & Interfaces 11(40), 37295-37301 (2019). https://doi.org/10.1021/acsami.9b11951
27. Makoto Kashiwagi, Yuxuan Liao, Shenghong Ju, Asuka Miura, Shota Konishi, Takuma Shiga, Takashi Kodama, and Junichiro Shiomi^*,
    Scalable multi-nanostructured silicon for room temperature thermoelectrics,
    ACS Applied Energy Materials 2(10), 7083-7091 (2019). https://doi.org/10.1021/acsaem.9b00893
28. 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, and Hisanori Shinohara^*,
    Isolation of Single-wired Transition-metal Monochalcogenides by Carbon Nanotubes,
    Nano Letters 19(8), 4845-4851 (2019).
    https://doi.org/10.1021/acs.nanolett.8b05074
29. Takuma Shiga^* and Junichiro Shiomi^*,
    Modulating temperature dependence of thermal conductivity by nanostructuring,
    Japanese Journal of Applied Physics (Rapid Communication) 57(12), 120312(1-4) (2018).
    https://doi.org/10.7567/JJAP.57.120312
30. Yuxuan Liao, Takuma Shiga, Makoto Kashiwagi, and Junichiro Shiomi^*,
    Akhiezer mechanism limits coherent heat conduction in phononic crystals,
    Physical Review B 98(13), 134307(1-8) (2018).
    https://doi.org/10.1103/PhysRevB.98.134307
31. Makoto Kashiwagi, Yuta Sudo, Takuma Shiga, and Junichiro Shiomi^*,
    Modeling Heat Conduction in Nanoporous Silicon with Geometry Distributions,
    Physical Review Applied 10(4), 044018(1-8) (2018).
    https://doi.org/10.1103/PhysRevApplied.10.044018
32. Shunsuke Maeno, James J. Cannon, Takuma Shiga^*, and Junichiro Shiomi^*,
    Molecular dynamics study on heat conduction in poly(3,4-ethylenedioxythiophene),
    Japanese Journal of Applied Physics 57(10), 101601(1-6) (2018).
    https://doi.org/10.7567/JJAP.57.101601
33. Shenghong Ju, Takuma Shiga, Lei Feng, and Junichiro Shiomi^*,
    Revisiting PbTe to identify how thermal conductivity is really limited,
    Physical Review B 97(18), 184305(1-6) (2018).
    https://doi.org/10.1103/PhysRevB.97.184305
    Preprint: arXiv:1805.00175
34. Noriyuki Wada, Makoto Ishikawa, Takuma Shiga, Junichiro Shiomi, Masaru Suzuki, and Kouji Miura^*,
    Superlubrication by phonon confinement,
    Physical Review B 97(16), 161403(R)(1-5) (2018).
    https://doi.org/10.1103/PhysRevB.97.161403
35. Takafumi Oyake, Lei Feng, Takuma Shiga, Masayuki Isogawa, Yoshiaki Nakamura, and Junichiro Shiomi^*,
    Ultimate Confinement of Phonon Propagation in Silicon Nanocrystalline Structure,
    Physical Review Letters 120(4), 045901(1-6) (2018).
    https://doi.org/10.1103/PhysRevLett.120.045901
    Preprint: arXiv:1801.04376
36. Lei Feng, Takuma Shiga, Haoxue Han, Shenghong Ju, Yuriy A. Kosevich^*, and Junichiro Shiomi^*,
    Phonon-interference resonance effects by nanoparticles embedded in a matrix,
    Physical Review B 96(22), 220301(R)(1-5) (2017).
    https://doi.org/10.1103/PhysRevB.96.220301
    Preprint: arXiv:1712.00564
37. Anuj Arora, Takuma Hori, Takuma Shiga, and Junichiro Shiomi^*,
    Thermal rectification in restructured graphene with locally modulated temperature dependence of thermal conductivity,
    Physical Review B 96(16), 165419(1-10) (2017).
    https://doi.org/10.1103/PhysRevB.96.165419
38. Takashi Kodama^*, Masato Ohnishi, Woosung Park, Takuma Shiga, Joonsuk Park, Takashi Shimada, Hisanori Shinohara, Junichiro Shiomi, and Kenneth E. Goodson^*,
    Modulation of thermal and thermoelectric transport in individual carbon nanotubes by fullerene encapsulation,
    Nature Materials 16(9), 892-898 (2017).
    https://doi.org/10.1038/nmat4946
39. Shenghong Ju, Takuma Shiga, Lei Feng, Zhufeng Hou, Koji Tsuda, and Junichiro Shiomi^*,
    Designing Nanostructures for Phonon Transport via Bayesian Optimization,
    Physical Review X 7(2), 021024(1-10) (2017).
    https://doi.org/10.1103/PhysRevX.7.021024
40. Masato Ohnishi, Takuma Shiga, and Junichiro Shiomi^*,
    Effects of defects on thermoelectric properties of carbon nanotubes,
    Physical Review B 95(15), 155405(1-10) (2017).
    https://doi.org/10.1103/PhysRevB.95.155405
    Preprint: arXiv:1612.07045
41. Haoxue Han^*, Lei Feng, Shiyun Xiong, Takuma Shiga, Junichiro Shiomi^*, Sebastian Volz^*, and Yuriy A. Kosevich^*,
    Long-range interatomic forces can minimize heat transfer: From slowdown of longitudinal optical phonons to thermal conductivity minimum,
    Physical Review B 94(5), 054306(1-8) (2016). https://doi.org/10.1103/PhysRevB.94.054306
42. Haoxue Han^*, Lei Feng, Shiyun Xiong, Takuma Shiga, Junichiro Shiomi, Sevastian Volz, and Yuriy A. Kosevich^*,
    Effects of phonon interference through long range interatomic bonds on thermal interface conductance,
    Low Temperature Physics 42(8), 711-716 (2016).
    https://doi.org/10.1063/1.4960498
43. Takuma Shiga^*, Daisuke Aketo, Lei Feng, and Junichiro Shiomi^*,
    Harmonic phonon theory for calculating thermal conductivity spectrum from first-principles dispersion relations,
    Applied Physics Letters 108(20), 201903(1-5) (2016).
    https://doi.org/10.1063/1.4950851
    Preprint: arXiv:1602.06490
44. Lei Feng, Takuma Shiga, and Junichiro Shiomi^*,
    Phonon transport in perovskite SrTiO₃ from first principles,
    Applied Physics Express 8(7), 071501(1-4) (2015).
    https://doi.org/10.7567/APEX.8.071501
    Preprint: arXiv:1506.02382
45. Heeyuen Koh, James J. Cannon, Takuma Shiga, Junichiro Shiomi, Shohei Chiashi, and Shigeo Maruyama^*,
    Thermally induced nonlinear vibration of single-walled carbon nanotubes,
    Physical Review B 92(2), 024306(1-10) (2015).
    https://doi.org/10.1103/PhysRevB.92.024306
46. Takuru Murakami, Takuma Hori, Takuma Shiga, and Junichiro Shiomi^*,
    Probing and tuning inelastic phonon conductance across finite-thickness interface,
    Applied Physics Express 7(4), 121801(1-4) (2014).
    https://doi.org/10.7567/APEX.7.121801
    Preprint: arXiv:1506.02377
47. Daisuke Aketo, Takuma Shiga, and Junichiro Shiomi^*,
    Scaling laws of cumulative thermal conductivity for short and long phonon mean free paths,
    Applied Physics Letters 105(13), 131901(1-5) (2014).
    https://doi.org/10.1063/1.4896844
48. Takuma Shiga, Takuru Murakami, Takuma Hori, Olivier Delaire, and Junichiro Shiomi^*,
    Origin of anomalous anharmonic lattice dynamics of lead telluride,
    Applied Physics Express 7(4), 041801(1-4) (2014).
    https://doi.org/10.7567/APEX.7.041801
    Preprint: arXiv:1506.02376
49. Takuma Shiga, Takuma Hori, and Junichiro Shiomi^*,
    Influence of mass contrast in alloy phonon scattering,
    Japanese Journal of Applied Physics 53(2), 021802(1-6) (2014). (SPOTLIGHTS)
    https://doi.org/10.7567/JJAP.53.021802
    Preprint: arXiv:1506.02365
50. Sho Hida, Takuma Hori, Takuma Shiga, James Elliott, Junichiro Shiomi^*,
    Thermal resistance and phonon scattering at the interface between carbon nanotube and amorphous polyethylene,
    International Journal of Heat and Mass Transfer 67, 1024-1029 (2013).
    https://doi.org/10.1016/j.ijheatmasstransfer.2013.08.068
51. Takuru Murakami, Takuma Shiga, Takuma Hori, Keivan Esfarjani, and Junichiro Shiomi^*,
    Importance of local force fields on lattice thermal conductivity reduction in PbTe_1−xSe_x alloys,
    EPL (Europhysics Letters) 102(4), 46002(1-5) (2013). (Editor’s choice)
    https://doi.org/10.1209/0295-5075/102/46002
52. Takuma Hori, Takuma Shiga, and Junichiro Shiomi^*,
    Phonon transport analysis of silicon germanium alloys using molecular dynamics simulations,
    Journal of Applied Physics 113(20), 203514(1-6) (2013).
    https://doi.org/10.1063/1.4807301
53. Takuma Shiga, Satoru Konabe, Junichiro Shiomi, Takahiro Yamamoto, Shigeo Maruyama, and Susumu Okada^*,
    Graphene-diamond hybrid structure as spin-polarized conducting wire with thermally efficient heat sinks,
    Applied Physics Letters 100(23), 233101(1-4) (2012).
    https://doi.org/10.1063/1.4725485
54. Zhiting Tian^*, Jivtesh Garg, Keivan Esfarjani, Takuma Shiga, Junichiro Shiomi, and Gang Chen^*,
    Phonon conduction in PbSe, PbTe, and PbTe_1−xSe_x from first-principles calculations,
    Physical Review B 85(18), 184303(1-7) (2012).
    https://doi.org/10.1103/PhysRevB.85.184303
55. Takuma Shiga, Junichiro Shiomi^*, Jie Ma, Olivier Delaire, Tomasz Radzynski, Andrzej Lusakowski, Keivan Esfarjani, and Gang Chen,
    Microscopic mechanism of low thermal conductivity in lead telluride,
    Physical Review B 85(5), 155203(1-5) (2012).
    https://doi.org/10.1103/PhysRevB.85.155203
    Preprint: arXiv:1204.0592
56. Alexey N. Volkov, Takuma Shiga, David Nicholson, Junichiro Shiomi^*, and Lenoid V. Zhigilei^*,
    Effect of bending buckling of carbon nanotubes on thermal conductivity of carbon nanotube materials,
    Journal of Applied Physics 111(5), 053501(1-11) (2012).
    https://doi.org/10.1063/1.3687943
57. Fumio Nishimura, Takuma Shiga, Shigeo Maruyama, Kazuyuki Watanabe, and Junichiro Shiomi^*,
    Thermal conductance of buckled carbon nanotubes,
    Japanese Journal of Applied Physics 51(1R), 015102(1-5) (2012). (SPOTLIGHTS)
    https://doi.org/10.1143/JJAP.51.015102