Faculty of Science Associate Professor
Graduate School of Science and Technology Fundamental Sciences Associate Professor
Updated on 2023/02/05
博士(理学) ( 2004.3 お茶の水女子大学 )
低温物性
放射光X線回折
高圧物性
Natural Science / Magnetism, superconductivity and strongly correlated systems
Niigata University Associate Professor
2018.10
Niigata University Institute for Research Promotion Assistant Professor
2017.4 - 2018.9
Niigata University Institute for Research Promotion, Center for Transdisciplinary Research Assistant Professor
2011.4 - 2017.3
Niigata University Center for Transdisciplinary Research Assistant Professor
2008.1 - 2011.3
東北大学大学院 工学研究科 研究支援者
2006.9 - 2007.12
Japan Atomic Energy Agency
2005.10 - 2006.8
日本原子力研究所 関西研究所 放射光科学研究センター 博士研究員
2004.4 - 2005.9
Niigata University Graduate School of Science and Technology Fundamental Sciences Associate Professor
2018.10
Niigata University Institute for Research Promotion Assistant Professor
2017.4 - 2018.9
Niigata University Institute for Research Promotion Center for Transdisciplinary Research Assistant Professor
2011.4 - 2017.3
Niigata University Center for Transdisciplinary Research Assistant Professor
2008.1 - 2011.3
Ochanomizu University 人間文化研究科 複合領域科学専攻
2001.4 - 2004.3
Ochanomizu University 人間文化研究科 物質科学専攻
1999.4 - 2001.3
Ochanomizu University Faculty of Science Division of Physics
1995.4 - 1999.3
THE JAPAN SOCIETY OF HIGH PRESSURE SCIENCE AND TECHNOLOGY
THE JAPANESE SOCIETY FOR SYNCHROTRON RADIATION RESEARCH
THE PHYSICAL SOCIETY OF JAPAN
日本高圧力学会 評議員 会計幹事
2021.9
Committee type:Academic society
高エネルギー加速器研究機構 物質構造科学研究所 放射光実験施設 放射光共同利用実験審査委員会委員(PF-PAC)
2021.4
日本高圧力学会 評議員
2017.9 - 2019.8
Committee type:Academic society
PFニュース編集委員会 編集委員
2014.4 - 2016.3
Committee type:Academic society
Hitoshi Yamaoka, Shunsuke Yamanaka, Ayako Ohmura, Naohito Tsujii, Jaroslav Valenta, Yusaku Furue, Hitoshi Sato, Hirofumi Ishii, Nozomu Hiraoka, Chishiro Michioka, Hiroaki Ueda, Kazuyoshi Yoshimura
Journal of the Physical Society of Japan 91 ( 12 ) 2022.12
Phase Transition in Fluid Hydrogen at Room Temperature Reviewed
Atsuko Nakayama, Yuya Isurugi, Yuya Serizawa, Satoshi Nakano, Ayako Ohmura, Fumihiro Ishikawa
Journal of the Physical Society of Japan 91 ( 9 ) 2022.9
Direct Observation of Pressure-induced Yb Valence Transition in YbInCu4 Reviewed
Hitoshi Yamaoka, Ayako Ohmura, Yusaku Furue, Naohito Tsujii, Hirofumi Ishii, Nozomu Hiraoka
Journal of the Physical Society of Japan 90 ( 12 ) 124801 2021.12
Superconducting and structural properties of the type-I superconductor PdTe2 under high pressure Reviewed
Yusaku Furue, Tadachika Fujino, Marc V. Salis, Huaqian Leng, Fumihiro Ishikawa, Takashi Naka, Satoshi Nakano, Yingkai Huang, Anne de Visser, Ayako Ohmura
Physical Review B 104 ( 14 ) 144510 2021.10
The microscopic transition process from high-density to low-density amorphous state of SnI4 Reviewed
Kazuhiro Fuchizaki, Ayako Ohmura, Hiroki Naruta, Takuya Nishioka
Journal of Physics: Condensed Matter 33 365401 2021.7
Cluster glass transition and relaxation in the random spinel CoGa2O4 Reviewed
T. Naka, T. Nakane, S. Ishii, M. Nakayama, A. Ohmura, F. Ishikawa, A. de Visser, H. Abe, T. Uchikoshi
Physical Review B 103 ( 22 ) 224408 2021.6
Do SnI4 molecules deform on heating and pressurization in the low-pressure crystalline phase? Reviewed
Hiroki Naruta, Kazuhiro Fuchizaki, Daisuke Wakabayashi, Akio Suzuki, Ayako Ohmura, Hiroyuki Saitoh
Journal of Physics: Condensed Matter 32 ( 5 ) 055401 - 055401 2020.1
Superconductivity under pressure in the Dirac semimetal PdTe2 Reviewed
H Leng, A Ohmura, L N Anh, F Ishikawa, T Naka, Y K Huang, A de Visser
Journal of Physics: Condensed Matter 32 ( 2 ) 025603 - 025603 2020.1
Transport and structural properties of Cu0.25Bi2(TexSe1-x)3 (x = 0.01) under high pressure Reviewed
Ayako Ohmura, Masako Matsuzawa, Fumihiro Ishikawa, Yusuke Suzuki, Masashi Komatsu, Shumpei Osuga, Satoshi Nakano, Atsuko Nakayama, Yuh Yamada, Takanari Kashiwagi, Kazuo Kadowaki
Japanese Journal of Applied Physics 56 ( 5 ) 2017.5
Pressure-induced topological phase transition in the polar semiconductor BiTeBr Reviewed
Ayako Ohmura, Yuichiro Higuchi, Takayuki Ochiai, Manabu Kanou, Fumihiro Ishikawa, Satoshi Nakano, Atsuko Nakayama, Yuh Yamada, Takao Sasagawa
PHYSICAL REVIEW B 95 ( 12 ) 2017.3
21aPS-30 Pressure dependence of transport properties of K(Fe_<1-x>Co_x)_2As_2
Yamagishi T., Ishikawa F., Okaji R., Ishii A., Nakayama A., Ohmura A., Yamada Yuh
Meeting Abstracts of the Physical Society of Japan 71 2227 - 2227 2016
21aPS-38 Single-crystal growth of Pr_2Ba_4Cu_7O_<15-δ> under oxygen pressure
Inaba K., Ishikawa F., Hoshito S., Sato C., Iwata N., Sumi Y., Nakayama A., Ohmura A., Yamada Yuh
Meeting Abstracts of the Physical Society of Japan 71 2233 - 2233 2016
19pBG-8 Search for post-graphite phase under high pressure at room temperature
Sato Takaaki, Nakayama Atsuko, Taniguchi Takashi, Yamada Yuh, Ishikawa Fumihiro, Ohmura Ayako
Meeting Abstracts of the Physical Society of Japan 71 1850 - 1850 2016
Counting graphene layers based on the light-shielding effect of Raman scattering from a substrate Reviewed
Atsuko Nakayama, Suguru Hoshino, Yuh Yamada, Ayako Ohmura, Fumihiro Ishikawa
APPLIED PHYSICS LETTERS 107 ( 23 ) 2015.12
Collapse of CuO Double Chains and Suppression of Superconductivity in High-Pressure Phase of YBa2Cu4O8 Reviewed
Atsuko Nakayama, Yusuke Onda, Shuhei Yamada, Hiroshi Fujihisa, Masafumi Sakata, Yuki Nakamoto, Katsuya Shimizu, Satoshi Nakano, Ayako Ohmura, Fumihiro Ishikawa, Yuh Yamada
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 83 ( 9 ) 2014.9
Pressure-induced superconductivity in non-stoichiometric bismuth telluride Bi35Te65 Reviewed
M. Einaga, A. Ohmura, F. Ishikawa, A. Nakayama, Yuh Yamada, S. Nakano, A. Matsushita, K. Shimizu
Journal of Physics: Conference Series 500 ( 19 ) 192003 - 192003 2014.5
Synthesis of New Layered Oxypnictides Sr2CrO2(FeAs)(2) Reviewed
Naoya Eguchi, Fumihiro Ishikawa, Michihiro Kodama, Takeshi Wakabayashi, Atsuko Nakayama, Ayako Ohmura, Yuh Yamada
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 82 ( 4 ) 2013.4
OHMURA Ayako
The Review of High Pressure Science and Technology 23 ( 4 ) 354 - 355 2013
Powder x-ray diffraction of BaFe2As2under hydrostatic pressure Reviewed
N Eguchi, M Kodama, F Ishikawa, A Nakayama, A Ohmura, Yuh Yamada, S Nakano
Journal of Physics: Conference Series 400 ( 2 ) 022017 - 022017 2012.12
Pressure-induced superconductivity in Bi0.85Sb0.15 alloy Reviewed
A. Ohmura, A. Yamamura, M. Einaga, F. Ishikawa, A. Nakayama, Yuh Yamada, S. Nakano
Journal of Physics: Conference Series 400 ( PART 2 ) 2012.1
Pressure effect on critical temperature for superconductivity and lattice parameters of AlB2-type ternary silicide YbGa1.1Si0.9 Reviewed
Ayako Ohmura, Koji Fujimaki, Fumihiro Ishikawa, Yuh Yamada, Naohito Tsujii, Motoharu Imai
PHYSICAL REVIEW B 84 ( 10 ) 2011.9
High-pressure study of ScH3: Raman, infrared, and visible absorption spectroscopy Reviewed
Tetsuji Kume, Hiroyuki Ohura, Tomoo Takeichi, Ayako Ohmura, Akihiko Machida, Tetsu Watanuki, Katsutoshi Aoki, Shigeo Sasaki, Hiroyasu Shimizu, Kenichi Takemura
PHYSICAL REVIEW B 84 ( 6 ) 2011.8
Pressure-induced phase transition of Bi2Te3 to a bcc structure Reviewed
Einaga Mari, Ohmura Ayako, Nakayama Atsuko, Ishikawa Fumihiro, Yamada Yuh, Nakano Satoshi
PHYSICAL REVIEW B 83 ( 9 ) 2011.3
Site dependent hardening of the lanthanum metal lattice by hydrogen absorption Reviewed
A. Machida, T. Watanuki, A. Ohmura, T. Ikeda, K. Aoki, S. Nakano, K. Takemura
SOLID STATE COMMUNICATIONS 151 ( 5 ) 341 - 345 2011.3
Pressure-induced phase transition, metallization, and superconductivity in boron triiodide Reviewed
Nozomu Hamaya, Miyuki Ishizuka, Suzue Onoda, Jiang Guishan, Ayako Ohmura, Katsuya Shimizu
Physical Review B - Condensed Matter and Materials Physics 82 ( 9 ) 2010.9
Powder x-ray diffraction study of Ne up to 240 GPa Reviewed
K. Takemura, T. Watanuki, K. Ohwada, A. MacHida, A. Ohmura, A. Ohmura, K. Aoki
Journal of Physics: Conference Series 215 2010.5
New superconducting phase of Bi2Te3under pressure above 11 GPa Reviewed
M. Einaga, Y. Tanabe, A. Nakayama, A. Ohmura, F. Ishikawa, Yuh Yamada
Journal of Physics: Conference Series 215 012036 - 012036 2010.3
High pressure raman and visible absorption study of AlH<SUB>3</SUB> Reviewed
N. Shimura, T. Takeichi, T. Kume, S. Sasaki, H. Shimizu, A. Ohmura, K. Ikeda, Y. Nakamori, S. Orimo
Journal of Physics: Conference Series 215 ( 1 ) 012047-1 - 012047-4 2010.3
Photocatalytic activities of Ba2RBiO6 (R = La, Ce, Nd, Sm, Eu, Gd, Dy) under visible light irradiation Reviewed
Takuya Hatakeyama, Shingo Takeda, Fumihiro Ishikawa, Ayako Ohmura, Atsuko Nakayama, Yuh Yamada, Akiyuki Matsushita, Jinhua Yea
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN 118 ( 1374 ) 91 - 95 2010.2
Pressure dependence of superconducting-transition temperature of YbGa1.1Si0.9
A. Ohmura, K. Fujimaki, M. Einaga, F. Ishikawa, A. Nakayama, Yuh Yamada, M. Imai, N. Tsujii
Journal of Physics: Conference Series 215 012035 2010
Structure of pressure-induced amorphous form of SnI4 at high pressure Reviewed
Ayako Ohmura, Kyoko Sato, Nozomu Hamaya, Maiko Isshiki, Yasuo Ohishi
Physical Review B - Condensed Matter and Materials Physics 80 ( 5 ) 2009.8
Structure of pressure-induced amorphous form of SnI4 at high pressure Reviewed
Ayako Ohmura, Kyoko Sato, Nozomu Hamaya, Maiko Isshiki, Yasuo Ohishi
PHYSICAL REVIEW B 80 ( 5 ) 2009.8
Zero-resistance superconducting phase in BaFe2As2 under high pressure Reviewed
Fumihiro Ishikawa, Naoya Eguchi, Michihiro Kodama, Koji Fujimaki, Mari Einaga, Ayako Ohmura, Atsuko Nakayama, Akihiro Mitsuda, Yuh Yamada
PHYSICAL REVIEW B 79 ( 17 ) 2009.5
Raman and optical absorption studies of rare-earth hydrides under high pressure Reviewed
T. Kume, H. Ohura, T. Takeichi, S. Sasaki, H. Shimizu, A. Ohmura, A. Machida, T. Watanuki, K. Aoki, K. Takemura
Journal of Physics: Conference Series 121 2008.12
Photochromism in yttrium hydride Reviewed
Ayako Ohmura, Akihiko Machida, Tetsu Watanuki, Katsutoshi Aoki, Satoshi Nakano, K. Takemura
APPLIED PHYSICS LETTERS 91 ( 15 ) 2007.10
Pressure-induced Structural change from hexagonal to fcc metal lattice in scandium trihydride Reviewed
A. Ohmura, A. Machida, T. Watanuki, K. Aoki, S. Nakano, K. Takemura
J. Alloys Compd. 446-447 598 - 602 2007.10
Long-period stacking structures in yttrium trihydride at high pressure Reviewed
A. Machida, A. Ohmura, T. Watanuki, K. Aoki, K. Takemura
Phys. Rev. B: 76 ( 5 ) 052101-1 - 052101-4 2007.8
High-pressure study of YH3 by Raman and visible absorption spectroscopy Reviewed
Tetsuji Kume, Hiroyuki Ohura, Shigeo Sasaki, Hiroyasu Shimizu, Ayako Ohmura, Akihiko Machida, Tetsu Watanuki, Katsutoshi Aoki, Kenichi Takemura
PHYSICAL REVIEW B 76 ( 2 ) 2007.7
Development of a single-crystal X-ray diffraction system for hydrostatic-pressure and low-temperature structural measurement and its application to the phase study of quasicrystals Reviewed
T. Watanuki, A. MacHida, T. Ikeda, A. Ohmura, H. Kaneko, K. Aoki, T. J. Sato, A. P. Tsai
Philosophical Magazine 87 ( 18-21 ) 2905 - 2911 2007.7
X-ray diffraction investigation of the hexagonal-fcc structural transition in yttrium trihydride under hydrostatic pressure Reviewed
A. Machida, A. Ohmura, T. Watanuki, T. Ikeda, K. Aoki, S. Nakano, K. Takemura
Solid State Communications 138 ( 9 ) 436 - 440 2006.6
Single Crystal Synchrotron X-Ray Diffraction Study under Pressure in UGe2 Reviewed
Naofumi Aso, Kenji Ohwada, Tetsu Watanuki, Akihiko Machida, Ayako Ohmura, Toshiya Inami, Yoshiya Homma, Yoshinobu Shiokawa, Kazuma Hirota, Noriaki K. Sato
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 75 88 - 90 2006.1
Band gap closing in yttrium hydride at high prebures Reviewed
Ayako Ohmura, Akihiko Machida, Tetsu Watanuki, Katsutoshi Aoki, Satoshi Nakano, K. Takemura
Joint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology 2005.1
Determination of low-pressure crystalline-liquid phase boundary of SnI4 Reviewed
Kazuhiro Fuchizaki, Yasuhiko Fujii, Yasuo Ohishi, Ayako Ohmura, Nozomu Hamaya, Yoshinori Katayama, Taku Okada
Journal of Chemical Physics 120 ( 23 ) 11196 - 11199 2004.6
Structural analysis of a high-pressure amorphous phase of SnI4 Reviewed
A. Ohmura, N. Hamaya, K. Sato, C. Ogawa, M. Isshiki, Y. Ohishi
Journal of Physics Condensed Matter 14 ( 44 ) 10553 - 10556 2002.11
カルコパイライトCuFeS<sub>2</sub>におけるCuとFeの電子配置
辻井直人, 山岡人志, 古江優作, 大村彩子, 石井啓文, 平岡望
粉体粉末冶金協会講演大会(Web) 2021 2021
Study of Topological Quantum Materials under High-Pressure Reviewed
Ayako OHMURA
The Review of High Pressure Science and Technology 30 ( 4 ) 281 - 289 2020
高圧下におけるSnI4固体のXAFS解析
成田 博貴, 渕崎 員弘, 西村 光仙, 鈴木 昭夫, 大村 彩子, 若林 大佑
日本物理学会講演概要集 74 ( 1 ) 1712 - 1712 2019.3
小型静水圧セルの開発とYbCu<sub>x</sub>の物性測定
古江優作, 大村彩子, 石川文洋, DE VISSER Anne, 辻井直人, 山岡人志
高圧討論会講演要旨集 60th 2019
Investigation of topological phase transition in BiTeBr under high pressure
A Ohmura, Y Higuchi, T Ochiai, M Kanou, S Nakano, F Ishikawa, A Nakayama, Yuh Yamada, T Sasagawa
Journal of Physics: Conference Series 950 042036 - 042036 2017.10
六方晶窒化ホウ素の各種圧媒体での加圧と構造および振動状態の圧力依存性
中山敦子, 三谷翔平, 田口翔太郎, 梅津拓人, 星野豪, 佐藤貴明, 中野智志, 谷口尚, 大村彩子, 石川文洋, 山田裕
高圧討論会講演要旨集 56th 2015
9aPS-84 Transport properties of YBa_2Cu_4O_8 single crystal grown by KOH flux method
Ishikawa F., Sawamura Naoko, Takahashi Hiroki, Nakayama A., Ohmura A., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 69 ( 2 ) 422 - 422 2014.8
28aPS-104 Single crystal growth of Zn-substituted YBa_2Cu_4O_8 using KOH-NaOH flux
Takahashi H., Sawamura N., Ishikawa F., Yamada Yuh, Nakayama A., Ohmura A.
Meeting abstracts of the Physical Society of Japan 69 ( 1 ) 617 - 617 2014.3
27pPSA-47 Substituted effect on conductivity on iron oxypnictide Sr_2CrFe_2As_2O_2
Eguchi N., Wakabayashi T., Sanngu K., Hirata K., Yamagishi T., Ishikawa F., Ohmura A., Nakayama A., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 69 ( 1 ) 574 - 574 2014.3
六方晶窒化ホウ素の水素中での加圧と圧力誘起構造相転移
中山敦子, 田口翔太郎, 三谷翔平, 中野智志, 谷口尚, 大村彩子, 石川文洋, 山田裕
高圧討論会講演要旨集 55th 2014
高圧水素雰囲気下での六方晶窒化ホウ素の構造変化
田口翔太郎, 中山敦子, 山田裕, 石川文洋, 大村彩子, 谷口尚, 中野智志
物構研サイエンスフェスタ要旨集 2013 2014
27pXZE-8 Synthesis of new series of Fe-oxypnictides with 21222 structure
Ishikawa F., Eguchi N., Wakabayashi T., Hirata K., Kikuchi M., Sangu K., Kodama M., Nakayama A., Ohmura A., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 68 ( 1 ) 663 - 663 2013.3
27pXZE-7 Synthesis of new iron-oxypnictide Sr_2CrFe_2As_2O_2 and its properties under high pressure
Eguchi N., Wakabayashi T., Ishikawa F., Ohmura A., Nakayama A., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 68 ( 1 ) 663 - 663 2013.3
3GPa以下での水素中の六方晶窒化ホウ素の振動状態と構造の変化
田口翔太郎, 中山敦子, 三谷翔平, 谷口尚, 中野智志, 大村彩子, 石川文洋, 山田裕
物構研サイエンスフェスタ要旨集 1st 2013
20pPSA-20 Investigation of superconductivity and crystal structure in Bi_<35>Te_<65> under high pressure
Einaga M., Ohmura A., Ishikawa F., Nakayama A., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 67 ( 2 ) 648 - 648 2012.8
20pPSB-32 Synthesis and properties of iron-based oxypnictide with blocking layers
Eguchi N., Wakabayashi T., Ishikawa F., Ohmura A., Nakayama A., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 67 ( 2 ) 564 - 564 2012.8
20pPSA-19 Effect of pressure on the superconducting transition in Cu_<0.25>Bi_2(Te_xSe_<1-x>)_3
Ohmura A., Matsuzawa M., Einaga M., Ishikawa F., Nakayama A., Yamada Yuh, Suzuki Y., Komatsu M., Kashiwagi T., Kadowaki K.
Meeting abstracts of the Physical Society of Japan 67 ( 2 ) 647 - 647 2012.8
25aPS-134 Pressure-induced superconductivity in n-type Bi_2Te_3 with non-stoichiometric composition
Einaga M., Ohmura A., Nakayama A., Ishikawa F., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 67 ( 1 ) 623 - 623 2012.3
27aCF-9 Pressure-induced phase-separation of graphite observed in MCMBs-H_2
Isurugi Yuya, Nakayama Atsuko, Taguchi Shoutarou, Kiryuu Aoi, Nakano Satoshi, Ohmuram Ayako, Ishikawa Fumihiro, Yamada Yuh, Fujihisa Hiroshi
Meeting abstracts of the Physical Society of Japan 67 ( 1 ) 924 - 924 2012.3
25aPS-87 Synthesis and properties of Sr_4Cr_2Fe_2As_2O_6
Ishikawa F., Kodama M., Watanabe T., Eguchi N., Nakayama A., Ohmura A., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 67 ( 1 ) 613 - 613 2012.3
25aPS-133 The relation between pressure-induced phase separation and superconducting transition temperature in bismuth-antimony alloy Bi_<1-x>Sb_x
Ohmura A., Yamamura A., Einaga M., Nakayama A., Ishikawa F., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 67 ( 1 ) 623 - 623 2012.3
放射光X線回折によるテルル化ビスマスのbcc構造への圧力誘起相転移 Reviewed
榮永茉利, 大村彩子, 中山敦子, 石川文洋, 山田裕, 中野智志
Photon Factory News 29 ( 4 ) 17 2012
高圧水素下における銀ろうの構造変化の観察
田口翔太郎, 石動裕也, 中山敦子, 山田裕, 石川文洋, 大村彩子, 中野智志
PFシンポジウム要旨集 29th 2012
2GPa以下での水素中の六方晶窒化ホウ素の構造変化
田口翔太郎, 副田大介, 中山敦子, 中野智志, 谷口尚, 大村彩子, 石川文洋, 山田裕
高圧討論会講演要旨集 53rd 2012
圧力を利用した炭素ナノ構造体の水素貯蔵に関する構造的研究
石動裕也, 中山敦子, 田口翔太郎, 木竜葵, 中野智志, 大村彩子, 石川文洋, 山田裕, 藤久裕司
PFシンポジウム要旨集 29th 2012
21pRA-2 Magnetic properties of nonstoichiometric Fe_2VAl_<1+δ>
Ishikawa F., Okawara Y., Nakayama A., Ohmura A., Yamada Yuh, Naka T., Matsushita A.
Meeting abstracts of the Physical Society of Japan 66 ( 2 ) 412 - 412 2011.8
22aPS-104 Pressure-induced superconductivity and structural phase transition in Bi_<1-x>Sb_x
Ohmura A., Yamamura A., Einaga M., Nakayama A., Ishikawa F., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 66 ( 2 ) 532 - 532 2011.8
22aPS-105 Transport property in hexagonal Bi_2Te_3 under high pressure up to 8 GPa
Einaga M., Ohmura A., Nakayama A., Ishikawa F., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 66 ( 2 ) 533 - 533 2011.8
24aTE-10 Vibrational state of h-BN pressurized in a hydrogen atmosphere
Nakayama Atsuko, Soeda Daisuke, Isurugi Yuya, Ohmura Ayako, Ishikawa Fumohiro, Yamada Yuh, Nakano Satoshi, Taniguchi Takashi
Meeting abstracts of the Physical Society of Japan 66 ( 2 ) 891 - 891 2011.8
25pPSB-56 Pressure effects on transport mechanism of ruprates with double chain
Fujimaki Koji, Katoh Hiroki, Fukushima Seiya, Ishikawa Fumihiro, Ohmura Ayako, Nakayama Atsuko, Yamada Yuh, Takeshita Nao
Meeting abstracts of the Physical Society of Japan 66 ( 1 ) 577 - 577 2011.3
25aTB-2 Vibrational state of h-BN pressurized in a hydrogen atmosphere
Nakayama Atsuko, Soeda Daisuke, Isurugi Yuya, Ohmura Ayako, Ishikawa Fumihiro, Yamada Yuh, Nakano Satoshi, Taniguchi Takashi
Meeting abstracts of the Physical Society of Japan 66 ( 1 ) 844 - 844 2011.3
25aHE-9 Magnetic properties of Fe_2VAl_<1+δ>
Ishikawa F., Okawara Y., Nakayama A., Ohmura A., Yamada Yuh, Naka T., Matsushita A.
Meeting abstracts of the Physical Society of Japan 66 ( 1 ) 453 - 453 2011.3
26pPSA-49 Transport Property in Bi_2Te_3 and Bi_2Se_3 under High Pressure
Einaga M., Ohmura A., Nakayama A., Ishikawa F., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 66 ( 1 ) 629 - 629 2011.3
26aEG-9 Pressure-induced superconductivity and structural phase transition in Bi_<1-x>Sb_x
Ohmura A., Yamamura A., Einaga M., Nakayama A., Ishikawa F., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 66 ( 1 ) 818 - 818 2011.3
高圧水素雰囲気中で観察されるナノグラファイトの構造変化
石動裕也, 田口翔太郎, 副田大介, 中山敦子, 中野智志, 大村彩子, 石川文洋, 山田裕, 藤久裕司
高圧討論会講演要旨集 52nd 2011
高圧水素中で観察されるhBNの振動状態
中山敦子, 副田大介, 石動裕也, 田口翔太郎, 中野智志, 谷口尚, 大村彩子, 石川文洋, 山田裕
高圧討論会講演要旨集 52nd 2011
Structure and superconductivity of Bi-Sb alloy under high pressure
OHMURA Ayako, YAMAMURA Ayako, EINAGA Mari, NAKAYAMA Atsuko, ISHIKAWA Fumihiro, YAMADA Yuh, NAKANO Satoshi
51 178 - 178 2010.10
Development of the ultra-small high pressure cell using a technique of modified-Bridgman type anvils for magnetization measurements under high pressure
ISHIKAWA Fumihiro, FUJIMAKI Koji, EINAGA Mari, OHMURA Ayako, NAKAYAMA Atsuko, YAMADA Yuh, MATSUSHITA Akiyuki, NAKA Takashi, NAKANISHI Takeshi
51 278 - 278 2010.10
Investigation of crystal structure and superconductivity in phase IV of Bi_2Te_3 under high pressure
EINAGA Mari, ISHIKAWA Fumihiro, OHMURA Ayako, NAKAYAMA Atsuko, YAMADA Yuh, NAKANO Satoshi
51 91 - 91 2010.10
Crystal structure and properties of iron-pnictide BaFe_2As_2 under high pressure
EGUCHI Naoya, KODAMA Michihiro, FUJIMAKI Koji, EINAGA Mari, ISHIKAWA Fumihiro, OHMURA Ayako, NAKAYAMA Atsuko, YAMADA Yuh, NAKANO Satoshi
51 207 - 207 2010.10
23aPS-30 Oxygen compositon dependence of electronic transport property in Pr_2Ba_4Cu_7O_<15-δ>
Fukushima S., Fujimaki K., Yamada S., Ishikawa F., Ohmura A., Nakayama A., Yamada Yuh, Matsushita A.
Meeting abstracts of the Physical Society of Japan 65 ( 2 ) 466 - 466 2010.8
23aPS-134 Effect of Sb doping level and pressure on the electrical resistivity of Bi_<1-x>Sb_x(x<0.22)
Yamamura A., Ohmura A., Einaga M., Nakayama A., Ishikawa F., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 65 ( 2 ) 491 - 491 2010.8
25pPSA-9 Electrical transport and magnetic property of Fe_2VAl_<1±δ>(δ≦0.04) Heusler alloy
Ohkawara Y., Eguchi N., Kodama M., Fujimaki K., Ishikawa F., Yamada Yuh, Nakayama A., Ohmura A.
Meeting abstracts of the Physical Society of Japan 65 ( 2 ) 431 - 431 2010.8
20pPSB-8 Crystal structure of BaFe_2As_2 under high-pressure
Eguchi N., Kodama M., Fujimaki K., Einaga M., Ishikawa F., Ohmura A., Nakayama A., Yamada Yuh, Mitsuda A., Nakano S.
Meeting abstracts of the Physical Society of Japan 65 ( 1 ) 578 - 578 2010.3
21aGR-1 Equation of state for solid neon at ultrahigh pressures
Takemura K., Watanuki T., Ohwada K., Machida A., Ohmura A., Aoki K.
Meeting abstracts of the Physical Society of Japan 65 ( 1 ) 869 - 869 2010.3
20aPS-108 Pressure effect of superconductivity and crystal structure in Bi_<1-x>Sb_x
Ohmura A., Yamamura A., Tanabe Y., Einaga M., Nakayama A., Ishikawa F., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 65 ( 1 ) 545 - 545 2010.3
20pPSA-15 Synthesis of single crystalline sample Pr_2Ba_4Cu_7O_<15-δ>
Kato H., Fukushima S., Onda Y., Ishikawa F., Yamada Y., Ohmura A., Nakayama A., Matsushita A., Horii S.
Meeting abstracts of the Physical Society of Japan 65 ( 1 ) 568 - 568 2010.3
20pHY-14 Pressure-induced superconductivity and structural phase transition in Bi_2Te_3
Einaga M., Nakayama A., Ohmura A., Ishikawa F., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 65 ( 1 ) 821 - 821 2010.3
23pGH-5 Anisotropic pressure effects on pressure-induced superconductivity in BaFe_2As_2
Ishikawa F., Eguchi N., Kodama M., Fujimaki K., Einaga M., Nakayama A., Ohmura A., Matoba T., Mitsuda A., Wada Hirofumi, Yamada Yuh
Meeting abstracts of the Physical Society of Japan 65 ( 1 ) 686 - 686 2010.3
26pYA-13 Structure and electrical property of Bi_<1-x>Sb_x under high pressure
Ohmura A., Tanabe Y., Einaga M., Ishikawa F., Nakayama A., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 64 ( 2 ) 707 - 707 2009.8
26aPS-113 High-pressure studies on structure and properties of iron arsenide BaFe_2As_2 produced by high-pressure synthesis
Eguchi N., Kodama M., Fujimaki K., Einaga M., Ishikawa F., Ohmura A., Nakayama A., Yamada Yuh, Mitsuda A., Nakano S.
Meeting abstracts of the Physical Society of Japan 64 ( 2 ) 503 - 503 2009.8
26aPS-110 High-pressure synthesis and properties of iron-based oxypnictide superconductor
Kodama M., Eguchi N., Fujimaki K., Einaga M., Ohmura A., Ishikawa F., Nakayama A., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 64 ( 2 ) 502 - 502 2009.8
28aRH-4 Pressure-induced superconductivity in BaFe_2As_2
Ishikawa F., Eguchi N., Kodama M., Fujimaki K., Einaga M., Nakayama A., Ohmura A., Mitsuda A., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 64 ( 2 ) 560 - 560 2009.8
25aPS-120 Investigation of the superconductivity in crystalline phase III of Bi_2Te_3 under high pressure
Einaga M., Nakayama A., Ohmura A., Ishikawa F., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 64 ( 2 ) 443 - 443 2009.8
26aPS-20 Pressure-induced structural-phase trandsition of YBa_2Cu_4O_8
Onda Y., Hiura Y., Nakayama A., Ishikawa F., Ohmura A., Yamada Yuh, Nakano S., Matsushita A.
Meeting abstracts of the Physical Society of Japan 64 ( 2 ) 482 - 482 2009.8
27pTH-9 Anisotropic transport properties of Fe_2VAl Heusler alloy
Ishikawa F., Hirota S., Ohmura A., Nakayama A., Yamada Yuh, Matsushita A.
Meeting abstracts of the Physical Society of Japan 64 ( 1 ) 459 - 459 2009.3
28aPS-30 Pressure dependence of superconducting transition temperature in YbGa_<1.1>Si_<0.9>
Ohmura A., Fujimaki K., Einaga M., Ishikawa F., Nakayama A., Yamada Yuh, Imai M., Tsujii N.
Meeting abstracts of the Physical Society of Japan 64 ( 1 ) 602 - 602 2009.3
28aPS-37 Pressure-induced structural change in the Bi_<1-x>Sb_x alloys
Tanabe Y., Einaga M., Nakayama A., Ohmura A., Ishikawa F., Yamada Yuh, Nakano S.
Meeting abstracts of the Physical Society of Japan 64 ( 1 ) 604 - 604 2009.3
YbGa<sub>1.1</sub>Si<sub>0.9</sub>の超伝導転移温度の圧力効果
大村彩子, 藤巻孔二, 榮永茉利, 石川文洋, 中山敦子, 山田裕, 今井基晴, 辻井直人
日本物理学会講演概要集 64 ( 1 ) 2009
22aPS-99 The rare earth dependence of photocatalytic activities on Ba_2RBiO_6 (R=rare earth) oxide
Hatakeyama T., Takeda S., Ishikawa F., Ohmura A., Nakayama A., Yamada Yuh, Matsushita A., Ye Jinhua
Meeting abstracts of the Physical Society of Japan 63 ( 2 ) 673 - 673 2008.8
21pPSA-35 Transport properties of Fe_2VAl_<1+δ> single crystal under high pressure
Hirota S., Tanabe Y., Ishikawa F., Nakayama A., Ohmura A., Yamada Yuh, Matsushita A.
Meeting abstracts of the Physical Society of Japan 63 ( 2 ) 393 - 393 2008.8
23pVE-9 High pressure Raman and UV-vis. spectra of Sc hydride
Kume T., Takeichi T., Sasaki S., Shimizu H., Machida A., Watanuki T., Aoki K., Ohmura A., Takemura K.
Meeting abstracts of the Physical Society of Japan 63 ( 2 ) 895 - 895 2008.8
20pPSB-31 Synthesis and superconducting properties of MoSr_2YCu_2O_<8-δ> system under high pressure
Fujimaki K., Udagawa K., Ishikawa F., Ohmura A., Nakayama A., Yamada Yuh
Meeting abstracts of the Physical Society of Japan 63 ( 2 ) 477 - 477 2008.8
20pPSB-29 Magnetic properties of Pr_2Ba_4Cu_7O_<15-δ> oxide superconductor under high pressure
Onda Y., Hiura Y., Ishikawa F., Ohmura A., Nakayama A., Yamada Yuh, Matsushita A.
Meeting abstracts of the Physical Society of Japan 63 ( 2 ) 476 - 476 2008.8
20pPSB-30 Pressure dependence of crystal structure and electrical conduction on Pr_2Ba_4Cu_7O_<15-δ>
Hiura Y., Onda Y., Einaga M., Nakayama A., Ishikawa F., Ohmura A., Yamada Yuh, Kagayama T., Nakano S., Matsushita A.
Meeting abstracts of the Physical Society of Japan 63 ( 2 ) 477 - 477 2008.8
池田一貴, 李海文, 大村彩子, 松尾元彰, 佐藤豊人, 中森裕子, 折茂慎一
高圧力の科学と技術 18 ( 2 ) 180 - 185 2008.5
Frontier of high pressure research on metal hydrides Reviewed
Katsutoshi Aoki, Akihiko Machida, Ayako Ohmura, Tetsu Watanuki
Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu 18 ( 3 ) 273 - 278 2008
24aTD-7 Pressure induced disproportionation in rare-earth metal dihydrides
Machida A., Ohmura A., Watanuki T., Aoki K.
Meeting abstracts of the Physical Society of Japan 62 ( 2 ) 1013 - 1013 2007.8
20pXB-9 Structural transition process in yttrium trihydride under high pressure
Machida A., Ohmura A., Watanuki T., Aoki K., Takemura K.
Meeting abstracts of the Physical Society of Japan 62 ( 1 ) 975 - 975 2007.2
24aZD-2 Pressure dependence of the infrared spectra of scandium hydride ScH_x
Omura Ayako, Machida Akihiko, Watanuki Tetsu, Aoki Katsutoshi, Takemura K.
Meeting abstracts of the Physical Society of Japan 61 ( 2 ) 790 - 790 2006.8
25pYK-17 Raman and visible absorption spectra of YH_3 under high pressure
Kume T., Ohura H., Sasaki S., Shimizu H., Ohmura A., Machida A., Watanuki T., Aoki K., Takemura K.
Meeting abstracts of the Physical Society of Japan 61 ( 2 ) 808 - 808 2006.8
25pYK-16 Structural transition in yttrium trihydride under high pressure
Machida A., Ohmura A., Watanuki T., Aoki K., Takemura K.
Meeting abstracts of the Physical Society of Japan 61 ( 2 ) 808 - 808 2006.8
28pXE-9 Structural deformation of Cd-Yb quasicrystal under high pressure and low temperature
Watanuki T., Machida A., Ohmura A., Aoki K., Ohwada K., Sato T.J., Tsai A.P.
Meeting abstracts of the Physical Society of Japan 61 ( 1 ) 778 - 778 2006.3
27pXD-8 High pressure infrared spectroscopy of scandium hydride
Omura Ayako, Machida Akihiko, Watanuki Tetsu, Aoki Katsutoshi, Takemura K.
Meeting abstracts of the Physical Society of Japan 61 ( 1 ) 926 - 926 2006.3
27pXD-7 Structural transition in lanthanum hydride under high pressure
Machida A., Ohmura A., Watanuki T., Aoki K., Takemura K.
Meeting abstracts of the Physical Society of Japan 61 ( 1 ) 926 - 926 2006.3
Infrared spectroscopic study of the band-gap closure in YH3 at high pressure
A Ohmura, A Machida, T Watanuki, K Aoki, S Nakano, K Takemura
PHYSICAL REVIEW B 73 ( 10 ) 2006.3
希土類金属水素化物の高圧下の構造・電子転移 Reviewed
青木勝敏, 綿貫徹, 町田晃彦, 大村彩子
固体物理 41 ( 11 ) 780 2006
21aYE-8 Structural and electronic transition in rare-earth metal hydrides under high pressure
Machida A., Ohmura A., Watanuki T., Aoki K., Nakano S., Takemura K.
Meeting abstracts of the Physical Society of Japan 60 ( 2 ) 818 - 818 2005.8
21aYE-7 Pressure-induced structural changes of scandium hydride
Ohmura Ayako, Machida Akihiko, Watanuki Tetsu, Aoki Katsutoshi, Nakano Satoshi, Takemura K.
Meeting abstracts of the Physical Society of Japan 60 ( 2 ) 818 - 818 2005.8
20pYK-12 Structural deformation of Cd-Yb quasicrystal under hydrostatic pressure.
Watanuki T., Machida A., Ohmura A., Aoki K., Ohwada K., Sato T. J., Tsai A. P.
Meeting abstracts of the Physical Society of Japan 60 ( 2 ) 648 - 648 2005.8
27aYQ-8Structural deformation of Cd-Yb quasicrystal under hydrostatic pressure.
Watanuki T., Machida A., Ohmura A., Aoki K., Ohwada K., Sato T.J., Tsai A.P.
Meeting abstracts of the Physical Society of Japan 60 ( 1 ) 761 - 761 2005.3
25aYM-3 Pressure dependence of the infrared spectra of metallic hydride YH_x
Ohmura Ayako, Machida Akihiko, Watanuki Tetsu, Aoki Katsutoshi, Nakano Satoshi, Takemura Kenichi
Meeting abstracts of the Physical Society of Japan 60 ( 1 ) 902 - 902 2005.3
14pTJ-8 High-pressure synthesis and structural properties of La- and Y-hydride
Machida A., Watanuki T., Ohmura A., Aoki K., Nakano S., Takemura K.
Meeting abstracts of the Physical Society of Japan 59 ( 2 ) 878 - 878 2004.8
Phase boundary between low-pressure crystalline state of molecular crystal SnI_4 and liquid state under hydrostatic pressure II
FUCHIZAKI K., OHMURA A., HAMAYA N., NAGAI K., OHISHI Y., KATAYAMA Y., FUJII Y.
Meeting abstracts of the Physical Society of Japan 58 ( 2 ) 749 - 749 2003.8
Evidence substantiating the existence of the liquid-liquid critical point in tin tetraiodide
Fuchizaki Kazuhiro, Ohmura Ayako, Suzuki Akio, Nishida Keisuke, Hamaya Nozomu, Saitoh Hiroyuki
Meeting Abstracts of the Physical Society of Japan 2016 The Physical Society of Japan
Evidence substantiating the existence of the temperatures of maximum density in tin tetraiodide
Fuchizaki Kazuhiro, Ohmura Ayako, Suzuki Akio, Nishida Keisuke, Hamaya Nozomu, Saitoh Hiroyuki
Meeting Abstracts of the Physical Society of Japan 2016 The Physical Society of Japan
Investigation of pressure-induced superconducting transition in BiTeCl (II)
Ohmura A., Kawabe T., Yoshihara K., Ishikawa F., Kanou M., Nakayama A., Yamada Yuh, Sasagawa T.
Meeting Abstracts of the Physical Society of Japan 2016 The Physical Society of Japan
24aPS-25 Effect on superconducting properties of synthesis conduction in cuprate superconductor Pr_2Ba_4Cu_7O_<15-δ>
Hyodo S., Inaba K., Ohashi K., Ishikawa F., Nakayama A., Ohmura A., Yamada Yuh
Meeting Abstracts of the Physical Society of Japan 2015 The Physical Society of Japan (JPS)
24aPS-60 Pressure effects on transport properties of BaFe_2As_2 under hydrostatic pressure
Hirata K., Eguchi N., Sangu K., Yamagishi T., Ishikawa F., Nakayama A., Ohmura A., Yamada Yuh
Meeting Abstracts of the Physical Society of Japan 2015 The Physical Society of Japan (JPS)
24aPS-61 Transport properties of K(Fe_<1-x>Co_x)_2As_2 under high pressure
Sangu K., Eguchi N., Hirata K., Yamagishi T., Okaji R., Ishikawa F., Nakayama A., Ohmura A., Yamada Yuh
Meeting Abstracts of the Physical Society of Japan 2015 The Physical Society of Japan (JPS)
フロンティア材料研究所学術賞(研究奨励部門)
2017.5 東京工業大学
大村 彩子
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
Grant number:20H01851 2020.4 - 2024.3
日本学術振興会 科学研究費助成事業 基盤研究(B) 基盤研究(B)
大村 彩子
Grant amount:\17550000 ( Direct Cost: \13500000 、 Indirect Cost:\4050000 )
ディラック半金属超伝導体の物性解明
2019.6 - 2020.3
公益財団法人内田エネルギー科学振興財団 試験研究費助成
大村 彩子
Authorship:Principal investigator Grant type:Competitive
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
2016.4 - 2019.3
日本学術振興会 科学研究費補助金 基盤研究(C)
大村 彩子
Authorship:Principal investigator Grant type:Competitive
環境低負荷型電子デバイスへの応用に向けたビスマス系新奇超伝導材料の基礎物性研究
2014 - 2015
一般財団法人佐々木環境技術振興財団 試験研究費助成
大村 彩子
Authorship:Principal investigator Grant type:Competitive
多重極限下の電子・熱物性測定と結晶構造解析による圧力誘起トポロジカル超伝導の研究
2013.4 - 2015.3
文部科学省 科学研究費補助金 新学術領域研究「対称性の破れた凝縮系におけるトポロジカル量子現象」
大村 彩子
Authorship:Principal investigator Grant type:Competitive
電子輸送特性と結晶構造の低温高圧下同時測定によるビスマス系化合物の超伝導の研究
2012.4 - 2014.3
日本学術振興会 科学研究費補助金 若手研究(B
大村 彩子
Authorship:Principal investigator Grant type:Competitive
高圧力下熱電能測定装置の開発とBi系合金における高圧下電子状態に関する研究
2010
公益財団法人ユニオンツール 育英奨学会研究助成
大村 彩子
Authorship:Principal investigator Grant type:Competitive
20 GPa超級改良型ブリッジマンアンビルセルの開発とシリコンの圧力誘起金属相における超伝導特性の探索に関する研究
2008
公益財団法人ユニオンツール 育英奨学会研究助成
大村 彩子
Authorship:Principal investigator Grant type:Competitive
固体物性物理学I
不規則系物理学II
理学スタディ・スキルズ
理学基礎演習
電磁気学IIB
電磁気学IIA
課題研究C
課題研究D
課題研究A
課題研究B
自然科学基礎実験
先端科学技術総論
現代物理学セミナーB
現代物理学セミナーA
専門力アクティブ・ラーニング
固体物性物理学Ⅰ
安全教育
物性物理学
理学スタディ・スキルズ
物理学基礎実習b
物理学基礎実習a
物理学基礎ゼミ
物理学実験B
物理学実験A
物理学実験D
物理学実験C
物性物理学II
電磁気学a
現代物理学への招待(物理学学習法)
物性物理学I
物理学実験a
物理学実験b
令和元年度日本物理教育学会新潟支部クリスマス講演会
Role(s): Lecturer
2019.12
令和元年度新潟県高校生理数トップセミナー・グループ研究(物理テーマ)担当
Role(s): Lecturer
2019.11 - 2019.12
新潟ジュニアドクター育成塾
2019.9
青少年のための科学の祭典
Role(s): Demonstrator
2009.11