Ohmura Ayako

Affiliation and department：

Research field (1)： Magnetism, superconductivity, and strongly correlated systems

Research keywords (3)：高圧物性 , 放射光X線回折 , 低温物性

Research theme for competitive and other funds (13)：

2024 - 2027 CdI2型遷移金属ダイテルライドにおけるバルク・表面超伝導の探索と高圧物性研究
2020 - 2024 ディラック半金属PdTe2における圧力誘起トポロジカル相転移と超伝導特性
2018 - 2023 Investigation of the origin of highly anomalous valence change in Yb compounds
2019 - 2020 ディラック半金属超伝導体の物性解明
2016 - 2019 Bi系層状ラシュバ物質群における圧力誘起超伝導および構造相転移の研究

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Papers (45)：

Hitoshi Yamaoka, Ayako Ohmura, Naohito Tsujii, Hirofumi Ishii, Nozomu Hiraoka, Hitoshi Sato, Masahiro Sawada. Pressure-induced large valence transitions in Yb-Cu binary intermetallic systems. Physical Review B. 2024. 109. 15
Hitoshi Yamaoka, Shunsuke Yamanaka, Ayako Ohmura, Naohito Tsujii, Jaroslav Valenta, Yusaku Furue, Hitoshi Sato, Hirofumi Ishii, Nozomu Hiraoka, Chishiro Michioka, et al. Valence Transitions in Yb₁₊_xIn_1-_xCu₄ Studied by High-resolution X-ray Absorption Spectroscopy, X-ray Diffraction, and Photoelectron Spectroscopy. Journal of the Physical Society of Japan. 2022. 91. 12
Atsuko Nakayama, Yuya Isurugi, Yuya Serizawa, Satoshi Nakano, Ayako Ohmura, Fumihiro Ishikawa. Phase Transition in Fluid Hydrogen at Room Temperature. Journal of the Physical Society of Japan. 2022. 91. 9
Hitoshi Yamaoka, Ayako Ohmura, Yusaku Furue, Naohito Tsujii, Hirofumi Ishii, Nozomu Hiraoka. Direct Observation of Pressure-induced Yb Valence Transition in YbInCu4. Journal of the Physical Society of Japan. 2021. 90. 12. 124801
Yusaku Furue, Tadachika Fujino, Marc V. Salis, Huaqian Leng, Fumihiro Ishikawa, Takashi Naka, Satoshi Nakano, Yingkai Huang, Anne de Visser, Ayako Ohmura. Superconducting and structural properties of the type-I superconductor PdTe2 under high pressure. Physical Review B. 2021. 104. 14. 144510

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MISC (87)：

辻井直人, 山岡人志, 古江優作, 大村彩子, 石井啓文, 平岡望. カルコパイライトCuFeS₂におけるCuとFeの電子配置. 粉体粉末冶金協会講演大会(Web). 2021. 2021
Ayako OHMURA. Study of Topological Quantum Materials under High-Pressure. The Review of High Pressure Science and Technology. 2020. 30. 4. 281-289
成田博貴, 渕崎員弘, 西村光仙, 鈴木昭夫, 大村彩子, 若林大佑. 高圧下におけるSnI4固体のXAFS解析. 日本物理学会講演概要集. 2019. 74. 1. 1712-1712
古江優作, 大村彩子, 石川文洋, DE VISSER Anne, 辻井直人, 山岡人志. 小型静水圧セルの開発とYbCu_xの物性測定. 高圧討論会講演要旨集. 2019. 60th
A Ohmura, Y Higuchi, T Ochiai, M Kanou, S Nakano, F Ishikawa, A Nakayama, Yuh Yamada, T Sasagawa. Investigation of topological phase transition in BiTeBr under high pressure. Journal of Physics: Conference Series. 2017. 950. 042036-042036

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Books (1)：

Lectures and oral presentations (6)：

Evidence substantiating the existence of the temperatures of maximum density in tin tetraiodide
(Meeting Abstracts of the Physical Society of Japan 2016)
Investigation of pressure-induced superconducting transition in BiTeCl (II)
(Meeting Abstracts of the Physical Society of Japan 2016)
Evidence substantiating the existence of the liquid-liquid critical point in tin tetraiodide
(Meeting Abstracts of the Physical Society of Japan 2016)
24aPS-60 Pressure effects on transport properties of BaFe_2As_2 under hydrostatic pressure
(Meeting Abstracts of the Physical Society of Japan 2015)
24aPS-61 Transport properties of K(Fe_<1-x>Co_x)_2As_2 under high pressure
(Meeting Abstracts of the Physical Society of Japan 2015)

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Education (3)：

Professional career (1)：

Work history (7)：

2018/10 - 現在 Niigata University
2017/04 - 2018/09 Niigata University Institute for Research Promotion
2011/04 - 2017/03 Niigata University Institute for Research Promotion, Center for Transdisciplinary Research
2008/01 - 2011/03 Niigata University Center for Transdisciplinary Research
2006/09 - 2007/12 東北大学大学院工学研究科研究支援者

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Committee career (5)：

Awards (1)：

Association Membership(s) (3)：

THE JAPANESE SOCIETY FOR SYNCHROTRON RADIATION RESEARCH , THE PHYSICAL SOCIETY OF JAPAN , THE JAPAN SOCIETY OF HIGH PRESSURE SCIENCE AND TECHNOLOGY

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