Hirayama Naomi

Research theme for competitive and other funds (4)：

2020 - 2023 第一原理計算と機械学習の融合による不純物ドープMg2Si系熱電材料の理論設計
2017 - 2020 Thermoelectric calculation at finite temperature: towards environmentally benign thermoelectric materials
2014 - 2017 Theoretical study of structural, electronic, and thermoelectric properties of silicide materials
2012 - 2016 Development of thermoelectric waste-heat-recovery power-generation system adaptable to automotive applications

Papers (50)：

Haruno Kunioka, Shiori Iida, Kosuke Kimura, Yuto Shioya, Yuki Hiraoka, Yoji Imai, Naomi Hirayama, Tsutomu Iida. Melt growth of crystalline α-SrSi2 by the vertical Bridgman method and its thermoelectric characteristics. Journal of Crystal Growth. 2024. 645. 127838-127838
Haruno Kunioka, Daishi Shiojiri, Shinta Takahashi, Kota Hiratsuka, Masato Yamaguchi, Naomi Hirayama, Yoji Imai, Motoharu Imai, Tsutomu Iida. Investigation of group 13 elements as potential candidates for p-type dopants in the narrow-gap thermoelectric semiconductor α-SrSi2. Journal of Materials Science. 2024. 59. 18. 7840-7853
Kiyoka Imai, Ryohei Ikebuchi, Naomi Hirayama, Noriaki Hamada, Yoji Imai. Electronic band engineering of Mg₂Si by isoelectronic impurity doping: a first-principles study for enhancing thermoelectric properties. Japanese Journal of Applied Physics. 2023. 62. SD. SD1007-SD1007
Daishi Shiojiri, Tsutomu Iida, Naomi Hirayama, Yoji Imai, Hiroharu Sugawara, Jin Kusaka. Recent Studies on the Environmentally Benign Alkaline-Earth Silicide Mg2Si for Middle-Temperature Thermoelectric Applications. Energies. 2022. 15. 13. 4859-4859
Daishi Shiojiri, Tsutomu Iida, Masato Yamaguchi, Naomi Hirayama, Yoji Imai. First-principles study of the effects of native defects on the thermoelectric properties of narrow-gap semiconducting α-SrSi2 using the hybrid functional method. Physica B: Condensed Matter. 2022. 634. 413795-413795

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MISC (10)：

Hirayama Naomi, Endo Akira, Hatano Naomichi. 27aXQ-11 Wire-diameter and temperature dependences of thermoelectric effect of Bismuth nanowires under a quantizing magnetic field. Meeting abstracts of the Physical Society of Japan. 2013. 68. 1. 761-761
Hirayama Naomi, Endo Akira, Shirasaki Ryoen, Nakamura Hiroaki, Hasegawa Yasuhiro, Hatano Naomichi, Fujita Kazuhiro, Yonemitsu Kenji. 18pFB-5 Diameter and temperature dependences of magnetothermopower in bismuth nanowires under a quantizing magnetic field. Meeting Abstracts of the Physical Society of Japan. 2012. 67. 2. 619-619
Nakamura H., Shirasaki R., Hatano N., Yonemitsu K., Hirayama N. 25aHD-10 Quantum oscillations of thermoelectric coefficients in pseudo-one-dimensional spin-orbit system. Meeting Abstracts of the Physical Society of Japan. 2011. 66. 1. 695-695
Hirayama N., Endo A., Fujita K., Hasegawa Y., Hatano N., Nakamura H., Shirasaki R., Yonemitsu K. 25pHG-15 Current-Induced Cooling Phenomenon in a Two-Dimensional Electron Gas under a Magnetic Field. Meeting Abstracts of the Physical Society of Japan. 2011. 66. 1. 704-704
Hirayam Naomi, Endo Akira, Fujita Kazuhiro, Hasegawa Yasuhiro, Hatano Naomichi, Nakamura Hiroaki, Shirasaki Ryoen, Yonemitsu Kenji. 23aTL-3 Theoretical study of thermoelectric characteristics of bismuth nanowires under a quantizing magnetic field. Meeting Abstracts of the Physical Society of Japan. 2011. 66. 2. 688-688

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Books (2)：

Thermoelectric energy conversion : theories and mechanisms, materials, devices, and applications
Woodhead Publishing is an imprint of Elsevier 2021 ISBN:9780128185353
Advanced Thermoelectrics: Materials, Contacts, Devices, and Systems (Series in Materials Science and Engineering)
CRC Press 2017 ISBN:9781498765725

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