Research field (2):
Magnetism, superconductivity, and strongly correlated systems
, Applied materials
Research theme for competitive and other funds (10):
2023 - 2026 反強磁性巨大磁歪材料の創製
2020 - 2023 一次元ディラック電子系物質における巨大熱電応答と熱・電気エネルギー変換機能
2019 - 2021 キャリアドープされたノーダルリング半金属におけるトポロジカル超伝導の発現
2018 - 2020 空間反転対称性を「破る」5d電子系の新物質開拓
2016 - 2019 パイロクロア格子系に創出する革新的熱・エネルギー変換材料
2016 - 2018 ディラック電子をもつカルシウム3dバンド伝導体の熱電変換応用
2016 - 2018 多軌道強相関系としてのイリジウム化合物の新物質開拓
2013 - 2016 特異な量子基底状態をとるカゴメ格子反強磁性体の新物質開拓
2009 - 2011 スピン1/2カゴメ銅鉱物における量子スピン液体状態の解明
2003 - 2006 高性能熱電変換材料の開発
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Papers (141):
Yoshihiko Okamoto. Unbalanced Charge Distribution Stabilized by Orbital Ordering. JPSJ News and Comments. 2024. 21
K. Takada, J. Shibutani, K. Yagi, F. Ikawa, Y. Yokoyama, D. Hirai, Y. Okamoto, N. Katayama, Y. Umena, L. M. G. H. Chavas, et al. Electric field-induced volume change in pyro-vanadate-phosphates: Toward an alternative actuator architecture. Applied Physics Letters. 2024. 125. 4
Fumiya Matsunaga, Yoshihiko Okamoto, Yasunori Yokoyama, Kanji Takehana, Yasutaka Imanaka, Yuto Nakamura, Hideo Kishida, Shoya Kawano, Kazuyuki Matsuhira, Koshi Takenaka. Anisotropic Optical Conductivity Accompanied by a Small Energy Gap in One-Dimensional Thermoelectric Telluride Ta4SiTe4. Physical Review B. 2024. 109. 16
Haruka Matsumoto, Youichi Yamakawa, Ryutaro Okuma, Daisuke Nishio-Hamane, Yoshihiko Okamoto. Superconductivity in Ternary Zirconium Telluride Zr6MTe2 with 3d Transition Metals. Journal of the Physical Society of Japan. 2024. 93. 2
Yusaku Shinoda, Yoshihiko Okamoto, Youichi Yamakawa, Hiroshi Takatsu, Hiroshi Kageyama, Daigorou Hirai, Koshi Takenaka. Superconductivity in Ternary Germanide ScPdGe and Silicide ScPdSi. Journal of the Physical Society of Japan. 2024. 93. 2
Masaki Gen, Yoshihiko Okamoto, Masaki Mori, Koshi Takenaka, Yoshimitsu Kohama. Magnetization process of the breathing pyrochlore magnet CuInCr4S8 in ultrahigh magnetic fields up to 150 T (vol 101, 054434, 2020). PHYSICAL REVIEW B. 2021. 103. 1
2019/03 - JPS Award for Outstanding Papers 2019, Line-Node Dirac Semimetal and Topological Insulating Phase in Noncentrosymmetric Pnictides CaAgX (X = P, As)
2018/11 - Millennium Science Forum Sir Martin Wood Prize Exploration of Novel Physical Properties and Functions of Transition Metal Compounds Based on the Unique Electronic and Crystal Structures
2018/04 - Journal of the Physical Society of Japan, Most Cited Articles in 2017 from Vol. 85, Line-Node Dirac Semimetal and Topological Insulating Phase in Noncentrosymmetric Pnictides CaAgX (X = P, As)
2018/04 - Journal of the Physical Society of Japan, Most Cited Articles in 2017 from Vol. 85, Low Carrier Density Metal Realized in Candidate Line-Node Dirac Semimetals CaAgP and CaAgAs