大石　泰生（Yasuo Ohishi）

プロフィール
構造物性Ⅰグループ

副主席研究員（構造物性Ⅰグループリーダー）

メール： ohishi＠spring8.or.jp


超高圧力下で発現する結晶構造相転移現象に魅せられ放射光X線構造解析研究を開始し、1986年からはKEK-PFの受託大学院生として、その後企業研究員として放射光利用の実行者かつ取り纏め役となり、1997年のSPring-8供用開始時にJASRIに移籍・所属して以来、主にBLサイエンティストとして計30年間放射光利用研究に邁進してきました。2015年まで担当したBL10XUからは、主に高圧構造物性及び地球惑星科学分野に関する約300報の論文を提出することができました。このことはBLの光源･光学系から測定装置設計と導入、分野ユーザーとの連携した利活用等、広範囲に及ぶ協力的活動の結果と考えています。


略歴

  • 1989年、大阪大学大学院基礎工学研究科博士課程（2年間のKEK受託大学院を含む）を単位取得修了。
  • 同年、住友化学工業株式会社、同社筑波研究所に配属。（在職中筑波大学にて論文博士(工学)を取得）。
  • 1997年、財団法人（後に公益財団法人）高輝度光科学研究センター・ビームライン部門に移籍。
  • 2015年、同・利用研究促進部門・構造物性Ⅰグループ、グループリーダー、極限構造チーム及び動的構造チームのチームリーダーを兼職。

キーワード

  • 高圧構造物性
  • 地球・惑星科学
  • 顕微XAFS
  • 放射光X線集光光学
  • XBL10XU
研究成果

研究歴概要

  1. 学位獲得までの研究：大阪大学1985-1988（途中KEK-PF受託学生:1986,7）
    • 固体ハロゲンの圧力誘起逐次構造相転移、人工超格子の圧力応答の研究（学位論文）。
    • 高圧X線回折＋IP利用。レイトレースプログラム開発とPF/BL-16の光学設計。
  2. 住友化学工業(株)在職時における企業研究：1989-1997
    • 有機・無機材料、及び半導体材料や複合構造体の構造分析業務：画像の計算機処理・自動計測手法開発、粉末法や高分解能X線結晶構造分析、放射光及び中性子利用担当。
  3. 現職にける研究・業務：(公財)高輝度光科学研究センター：1997～
    • 高圧物性研究：精密高圧X線構造解析、特定領域やNEDO等大型プロジェクト参加。
    • X線屈折レンズとサブミクロンX線集光光学系の開発・高度化
    • 多重極限・X線回折複合同時測定実験装置群の作製・導入・高度化
    • 高エネルギーX線利用BL利用に向けた最適化と高度化（ID,モノクロ系）・ユーザー支援に関する業務
    • 2012年より、阪大基礎工招聘教授。

主要研究論文

  • S. Tateno, Y. Kuwayama, K. Hirose, and Y. Ohishi; The Structure of Fe-Si Alloy in Earth’s Inner Core: Earth and Planetary Science Letters, 418, (2015) 11-19.
  • H. Hirai, H. Kadobayashi, N. Hirao, Y. Ohishi, Y. Tamamoto, and S. Nakano; Time-resolved X-ray Diffraction and Raman Studies of the Phase Transition mechanisms of Methane Hydrate: The Journal of Chemcal Physics, 142, (2015) 024707.
  • T. Matsuoka, M. Sakata, Y. Nakamoto, K. Takahama, H. Ichimaru, K. Mukai, K. Ohta, N. Hirao, Y. Ohishi, and K. Shimizu; Pressure-induced Reentrant Metallic Phase in Lithium: Physical Review B 89-14, (2014) 144103.
  • Y. Akahama, N. Hirao, Y. Ohishi, and A. K. Singh; Equation of State of bcc-Mo by Static Volume Compression to 410 GPa: Journal of Applied Physics 116, (2014) 223504.
  • R. Nomura, K. Hirose, K. Uesugi, Y. Ohishi, A. Tsuchiyama, A. Miyake and Y. Ueno; Low Core-Mantle Boundary Temperature Infrared from the Solidus of Pyrolite: Science 343, (2014) 522-525.
  • H. Ozawa, K. Hirose, T. Suzuki, Y. Ohishi and N. Hirao; Decomposition of Fe3S above 250 GPa: Geophysical Research Letters 40-18, (2013) 4845-4849.
  • R. P. Dias, C-S. Yoo, V. Struzhkin, M. Kim, T. Muramatsu, T. Matsuoka, Y. Ohishi and S. Sinogeikin; Superconductivity in Highly Disordered dense Carbon Disulfide: PNAS 110-29, (2013) 11720-11724.
  • K. Sakai, Y. Okada, S. Kitaoka, J. Tsurumi, Y. Ohishi, A. Fujiwara, K. Takimiya and J. Takeya; Anomalous Pressure Effect in Heteroacene Organic Field-effect Transistors: Physical Review Letters 110-9, (2013) 096603.
  • J. Tse, S. Desgreniers, Y. Ohishi and T. Matsuoka; Large Amplitude Flexional Behaviour of Elemental Calcium under High Pressure: Scientific Report 2, (2012) 372.
  • M. Murakami, Y. Ohishi, N. Hirao and K. Hirose; A Perovskitic Lower Mantle Inferred from High-Pressure, High-Temperature Sound Velocity Data: Nature 485, (2012) 90-94.
  • K. Ohta, R. Cohen, K. Hirose, K. Haule, K. Shimizu and Y. Ohishi; Experimental and Theoretical Evidence for Pressure-induced Metallization in FeO with Rocksalt-Type Structure: Physical Review Letters 108-2, (2012) 0268403.
  • A. A. Leitch, K. Lekin, S. M. Winter, L. E. Downie, H. Tsuruda, J. S. Tse, M. Mito, S. Desgreniers, P. A. Dube, S. Zhang, Q. Liu, C. Jin, Y. Ohishi and R. T. Oakley; From Magnets to Metals: The Response of Tetragonal Bisdiselenazolyl Radicals to Pressure: Journal of American Chemical Society, 133, (2011) 6051-6060.
  • H. Ozawa, F. Takahashi, K. Hirose, Y. Ohishi and N. Hirao; Phase Transition of FeO and Stratification in Earth’s Outer Core: Science 334, (2011) 792-794.
  • T. Matsuoka, N. Hirao, Y. Ohishi, T. Mitsui, R. Masuda, M. Seto, Y. Yoda, K. Shimizu, A. Machida and K. Aoki; Structural and Valence Changes of Europium Hydride Induced by Application of High-Pressure H2: Physical Review Letters 107-2, (2011) 025501.
  • S. Tateno, K. Hirose, Y.Ohishi and Y. Tatsumi; The Structure of Iron in Earth’s Inner Core: Science 330-359, (2010) 359-361.
  • Y. Akahama, M. Nishimura, H. Kawamura, Y. Ohishi, N. Hirao and K. Takemura; Evidence from X-ray Diffraction of Orientational Ordering in Phase III of Solid Hydrogen at Pressures up to 183 GPa: Physical Review B 82-6, (2010) 060101(R).
  • A. Ganin, Y. Takabayashi, P. Jeglic, D. Arcon, A. Potocnik, P. Baker, Y. Ohishi, M. McDonald, M. Tzirakis, A. McLennan, G. Darking, M. Takata, M. Rosseinsky, K. Prassides; Polymorphism Control of Superconductivity and Magnetism in Cs3C60 Close to the Mott Transition: Nature 466-7303, (2010) 221-225.
  • M. Mito, Y. Komorida, H. Tsuruda, J.S. Tse, S. Desgreniers, Y. Ohishi, A. Leitch, K. Cvjlkali, C. Robertson and R. Oaklay; Heavy Atom Ferromagnets under Pressure: Structural Changes and Magnetic Response: Journal of the American Chemical Society 131-44, (2009) 16012-16013.
  • M. Murakami, Y. Asahara, Y. Ohishi, N. Hirao and K. Hirose; Development of in situ Brillouin Spectroscopy at High Pressure and High Temperature with Synchrotron Radiation and Infrared Laser Heating System: Application to the Earth's Deep Interior: Physics and the Earth and Planetary Interiors 174-1-4, (2009) 282-291.
  • Y. Takabayashi, A. Ganin, P. Jeglic, D. Arcon, T. Takano, Y. Iwasa, Y. Ohishi, M. Takata, N. Takeshita, K. Prassedes and M. Rossinsky; The Disorder-Free Non-BCS Superconductor Cs3C60 Emerges from an Antiferromagnetic Insulator Parent State: Science 323, (2009) 1585-1590.
  • Y. Ohishi, N. Hirao, N. Sata, K. Hirose and M. Takata; Highly intense monochromatic X-ray diffraction facility for high-pressure research at SPring-8, High Pressure Research 28, (2008) 163-173.
  • K.Ohta, S. Onoda, K. Hirose, R. Sinmyo, K. Shimizu, N. Sata, Y. Ohishi and A. Yasuhara; The Electrical Conductivity of Post-Perovskite in Earth's D" layer, Science 320, (2008) 89-91.
  • I. Jarruge, J-P. Rueff, S. Shieh, M. Taguchi, Y. Ohishi, T. Matsumura, J. Wang, H. Ishii, N. Hiraoka and Y. Cai; Pressure-Induced Valence Anomaly in TmTe Probed by Resonant Inelastic X-Ray Scattering; Physical Review Letters 101-12, (2008) 127401.
  • M. Murakami, S. Sinogeikin, J. Bass, N. Sata, Y. Ohishi and K. Hirose; Sound Velocity of MgSiO3 Post-Perovskite Phase: A Constraint on the D" Discontinuity, Earth and Planetary Science Letters 259-1-2,, (2007) 18-23.
  • M. Inui, K. Matsusa, D. Ishikawa, K. Tamura and Y. Ohishi; Medium-Range Fluctuations Accompanying the Metal-Nonmetal Transition in Expanded Fluid Hg, Phys. Rev. Lett. 98-18, (2007) 185504.
  • H. Fujihisa, Y. Akahama, H. Kawamura, Y. Ohishi, Y. Gotoh, H. Yamawaki, M. Sakashita, S. Takeya and K. Honda; Incommensurate Structure of Phosphorus Phase IV, Phys. Rev. Lett. 98-17, (2007) 175501.
  • S. R. Shieh, T. S. Duffy, A. Kubo, G. Shen, V. Prakapenka, N. Sata, K. Hirose and Y. Ohishi; Equation of State of the Post-perovskite Phase Synthesized from a Natural (Mg,Fe)SiO3 Orthopyroxene, Proceedings of the National Academy of Sciences of the United States of America 103-9, (2006) 3039-3034.
  • H. Fujihisa, Y. Akahama, H. Kawamura, Y. Ohishi, O. Shimomura, H. Yamawaki, M. Sakashita, Y. Gotoh, S. Takeya and K. Honda; O8 Cluster Structure of the Epsilon Phase of Solid Oxygen, Phts. Rev. Lett. 97, (2006) 085503.
  • Y. Akahama, M. Nishimura, K. Kinoshita, H. Kawamura and Y. Ohishi; Evidence of a fcc-hcp Transition in Aluminum at Multimegabar Pressure, Phys. Rev. Lett. 96-4, (2006) 045505.
  • Y. Kuwayama, K. Hirose, N. Sata and Y.Ohishi; The Pyrite-Type High-Presure Form of Silica, Science 309-5736, (2005) 923-925.
  • K. Ohwada, K. Ishii, T. Inami, Y. Murakami, T. Shobu, H. Ohsumi, N. Ikeda and Y. Ohishi; Structural Properties and Phase Transition of Hole-Orbital-Ordered (C2H5NH3)2CuCl4 Studied by Resonant and Non-Resonant X-ray Scatterings under High Pressure, Phys. Rev. B 72-1, (2005) 014123.
  • K. Hirose, N. Takafuji, N. Sata and Y. Ohishi; Phase Transition and Density of Subducted MORB Crust in the Lower Mantle, Earth and Planetary Science Letters 237-1-2, (2005) 239-251.
  • Y. Shodai, S. Kohara, Y. Ohishi, M. Inaba and A. Tasaka; Anionic Species (FH)xF- in Room-Temperature Molten Fluorides (CH3)4NF·mHF, The Journal of Physical Chemistry A 108-8, (2004)1127-1132.
  • M. Murakami, K. Hirose, K. Kawamura, N. Sata and Y. Ohishi; Post-Perovskite Phase Transition in MgSiO3, Science 304-5672, 655-858 (2004).
  • M. Isshiki, T. Irifune. K. Hirose, S. Ono, Y. Ohishi, T. Watanuki, E. Nishibori, M. Takata and M.Sakata; Stability of Magnesite and Its High-Pressure Form in the Lowermost Mantle, Nature 427-6969, (2004) 60-63.
  • S. Ono, T. Tuchiya, K. Hirose and Y.Ohishi; High-Pressure Form of Pyrite-Type Germanium Dioxide, Phys. Rev. B 68-1, (2003) 014103.
  • Y. Moritomo, M. Hamawa, Y. Ohishi, K. Kato, M. Takata, A. Kuriki, E. Nishibori, M. Sakata, S. Ohkoshi, H. Tokoro and K. Hashimoto; Pressure- and Photoinduced Transformation into a Metastable Phase in RbMn[Fe(CN)6], Phys. Rev. B 68-14, (2003)144106.
  • M. Murakami, K. Hirose, S. Ono and Y. Ohishi; Stability of CaCl2-Type and α-PbO2-Type SiO2 at High Pressure and Temperature Determined by in-situ X-Ray Measurements, Geophysical Research Letters 30-5, (2003) 11.
  • A. Onodera, S. Tsuduki, Y. Ohishi, T. Watanuki, K. Ishida, Y. Kitaoka and Y. Onuki; Equation of State of CeCu2Ge2 at Cryogenic Temperature, Solid State Communications 123-3-4, (2002) 113-116.
  • Z. Hiroi, T. Yamauchi, T. Yamada, M. Hanawa, Y. Ohishi, O. Shimomura, M. Abiliz, M. Hedo and Y. Uwatoko; High-Pressure Study on the Superconducting Pyrochlore Oxide Cd2Re2O7, Journal of the Physical Society of Japan 71-6, (2002) 1553-1557.
  • A. Ohmura, N. Hamaya, K. Sato, C. Ogawa, M. Isshiki and Y. Ohishi; Structure Analysis of a High-Pressure Amorphous Phase of SnI4, Journal of Physics: Condensed Matter 14-44, (2002) 10553-10556.
  • A. Kuriki, Y. Moritomo, A. Machida, E. Nishibori, M. Takata, M. Sakata, Y. Ohishi, O. Shimomura and A. Nakamura; High-Pressure Structural Analysis of (Nd,Sm) 1/2Sr1/2 MnO3 : Origin for Pressure-Induced Charge Ordering, Phys. Rev B 65-11, (2002) 113105.
  • Y. Ohishi, A. Q. Baron, M. Ishii, T. Ishikawa and O. Shimomura; Refractive X-Ray lens for High Pressure Experiments at SPring-8, Nuclear Instruments and Methods in Physics Research Section A, 467-468(2), (2001) 962-965.
  • M. Isshiki, Y. Ohishi, S. Goto, K. Takeshita and T. Ishikawa; High-Energy X-Ray Diffraction Beamline: BL04B2 at SPring-8, Nuclear Instruments and Methods in Physics Research Section A, 467-468(1), (2001) 663-668.
  • K. Prassides, Y. Iwasa, T. Ito, H. C. Dam, K. Uehara, E. Nishibori, M. Takata, M. Sakata, Y. Ohishi, O. Shimomura, T. Muranaka and J. Akimitsu; Compressibility of the MgB2 Superconductor: Physical Review Letters 64-1, (2001) 012509.
  • H. Kawamura, Y. Akahama, S. Imemoto, K. Takemura, Y. Ohishi and O. Shimomura; X-Ray Powder Diffraction from Solid Deuterium, Solid State Communications 119-1, (2001) 29-32.
  • K. Nakano, Y. Akahama, Y. Ohishi and H. Kawamura; Ruby Scale at Low Temperature Calibrated by the NaCl Gauge: Wavelength Shift of Ruby R1 Fluorescence Line, Japanese Journal of Applied Physic 39-3A, (2000) 1249-1251.
  • H. Yusa, T. Inoue and Y. Ohishi; Isothermal Compressibility of Hydrous Ringwoodite and Its Relation to the Mantle Discontinuitie, Geophysical Research Letters 27-3,(2000) 413-416.
  • A.Q.Baron, Y.Kohmura, Y.Ohishi and T.Ishikawa; A refractive collimator for synchrotron radiation, Applied Phys. Lett. 74-10, 1492-1494 (1999).
  • N.Hamaya, K.Sato, K.Usui-Watanabe, K.Fuchizaki, Y.Fujii and Y.Ohishi; Amorphization and molecular dissociation of SnI4 at high pressure, Phys. Rev. Lett. 79-23, (1997) 4597-4600.
  • Y.Ohishi, K.Fuchizaki, A.Uemura, M.Minobe, J.Suzuki, S.Funahashi; Small angle neutron scattering study of phase separation in PMMA/SAN, JAERI-M 93-228. Proc. 5'th Int. Symp. Adv. Nucl. Energy Res., 2, (1993) 699-703.
  • Y.Fujii, Y.Ohishi, H.Konishi, N.Nakayama and T.Shinjo; High-pressure SRX-ray diffraction studies of structural and elastic aspects of superlattices, J. Magn. Mater. 126, (1993) 192-196.
  • O. Shimomura, K. Takemura, H. Fujihisa, Y. Fujii, Y.Ohishi, T. Kikegawa, Y. Amemiya and T. Matsushita; Application of an imaging plate to high-pressure x-ray study with diamond anvil cell, Rev. Sci. Instum. 63-1, (1992) 966-973.
  • Y.Fujii, Y.Ohishi, H.Konishi, N.Nakayama and T.Shinjo; High-pressure x-ray diffraction studies of elastic anomalies in superlattice, Mater. Res. Soc. Symp. Proc. 231, (1992) 355-365.
  • H.Fujihisa, Y.Fujii, K.Hase, Y.Ohishi, N.Hamaya, K.Tsuji, K.Takemura, O.Shimomura, H.Takahashi and T.Nakajima; Pressure-induced molecular dissociation in iodine at low temperature, High Pressure Research 4, (1990) 330-332.
  • Y.Ohishi, N.Shingaki, Y.Fujii, Z.Hiroi, N.Nakayama, Y.Bando and T.Shinjo; Structural instability on PbSe/SnSe superlattices under pressure, High Pressure Research 4, (1990) 300-302.
  • N.Metoki, H.Suematsu, Y.Murakami, Y.Ohishi and Y.Fujii; Time-resolved x-ray diffraction study of one-dimensional nucleation and growth in the first-order transition, Phys. Rev. Lett. 64, (1990) 657-660.
  • Y.Muramatsu, Y.Ohishi, H.Maezawa and T.Matsushita; Description of synchrotron radiation source in ray tracing programs, Rev. Sci. Instrum. 60-7, (1989) 2048-2050.
  • Y.Ohishi, Y. Fujii, N.Nakayama, T.Shinjo, T.Matsushita and J.Fujita; Synchrotron x-ray diffraction study of supermodulus effect in Ni/Mo superlattices under high pressure, MRS Int'l. Mtg. on Adv. Mats. 10(Multilayers), (1989) 569-574.
  • Y.Fujii, K.Hase, Y.Ohishi, H.Fujihisa, N.Hamaya, K.Takemura, O.Shimomura, T. Kikegawa, Y. Amemiya and T.Matsushita; Evidence for molecular dissociation in bromine near 80GPa, Phys. Rev. Lett. 63, (1989) 536-539.
  • Y.Fujii, K.Hase, N.Hamaya, Y.Ohishi, A.Onodera, O.Shimomura and K.Takemura; Pressure-induced face-centered-cubic phase of monatomic metallic iodine, Phys. Rev. Lett. 58, (1987) 796-799.
  • Y.Fujii, Y.Ohishi, M.Kowaka, N.Hamaya, K.Takamura, S.Hoshino, K.Tsuji and S.Minomura; A new diamond anvil cell for x-ray diffuse scattering, Physica 139&140B, (1986) 907-909.
  • Y.Fujii, K.Hase, Y.Ohishi, N.Hamaya and A.Onodera; Pressure induced monoatomic tetragonal phase of metallic iodine, Solid State Commun. 59, (1986) 85-88.
  • Y.Fujii, Y.Ohishi, A.Onodera, K.Takemura and R.L.Reichlin; X-ray diffraction study of polar crystal IBr under pressure. - Structural evidence for molecular dissociation - , Jpn. J. Appl. Phys. 24, (1985) 606-608.

和文発表論文等

  • 大石 泰生, 児島 俊郎, 植村 明夫；シンクロトロン放射光によるX線小角散乱法の新展開：住友化学 1993-Ⅱ, 99-116 (1993).
  • 大石 泰生, 植村 明夫, 雨宮 慶幸；新しいX線テレビによる高分子材料の延伸と変形過程の回折実験：放射光 7-2, 128-136 (1994).
  • 大石泰生；X線屈折レンズを用いた高圧実験用集光光学系：放射光 14-4, 287-291 (2001).
  • 小原真司、大石泰生、高田昌樹、米田安宏、鈴谷健太郎；高エネルギー放射光およびコンピュータシミュレーションを用いた”乱れた構造”の三次元可視化：日本結晶学会誌 47-2, (2005) 123-129.
  • 小原真司、大石泰生、鈴谷健太郎、高田昌樹；高エネルギー放射光による非晶質物質の構造解析-常温・常圧から極限環境下まで-：溶融塩および高温化学 (Molten Salts)　49-3, (2007) 71-79.
  • 松岡岳洋、平尾直久、大石泰生、清水克哉、町田晃彦、青木勝敏；高圧水素中における金属水素化物の電気抵抗測定技術及び鉄水素化物の電気伝導特性と結晶構造：高圧力の科学と技術 21-3, (2011) 190-196.
  • 平井寿子、香川慎伍、田中岳彦、松岡岳洋、八木健彦、大石泰生、山本佳孝、大竹道香；Filled ice Ic水素ハイドレートの低温高圧下における相変化：低温科学71, (2013) 173-180.

国際会議発表

  • Y. Ohishi, N. Hirao, S. Imada, Kei. Hirose, and K. Shimizu; New High-Pressure Applications by using X-ray Micro-Beam at SPring-8: International Conference on High Pressure Science and Technology Joint AIRAPT-25 & EHPRG-53, Madrid, Spain (2015).
  • Y. Ohishi, N. Hirao, T. Matsuoka, K. Shimizu, and K. Hirose; Recent Micro X-ray Focusing Optics and High-Pressure Applications at SPring-8: Congress and General Assembly of the International Union of Crystallography (IUCr XIIIV), Montreal, Canada (2014).
  • Y. Ohishi, N. Hirao, T. Matsuoka, K. Shimizu and K. Hirose; Newly Developed Micro X-ray Focusing Optics for High-Pressure X-ray Diffraction at SPring-8: 2013 Workshop of the IUCr Commission on High Pressure, DESY, Hamburg, Germany (2013).
  • Y. Ohishi, N. Hirao, Y. Mori, T. Matsuoka and K. Shimizu; New Hybrid Experiment Facility for Low-Temperature/High-Pressure XRD at SPring-8: APS-SCCM & AIRAPT-24 Joint Conference, Seattle, Washington, USA (2013).
  • Y. Ohishi, N. Hirao, T. Matsuoka and K. Shimizu; New Possibilities of High- Pressure/Low-Temperature Experiments at BL10XU/SPring-8: IUCr-Commission on High Pressure 2012 Meeting, Mito, Ibaraki, Japan (2012).
  • Y. Ohishi, N. Hirao, T. Matsuoka, T. Mitsui, K. Aoki; Anomalous Lattice Compressions of FeH Polymorphs: Gordon Research Conference on “High Pressure, Research at”, Biddeford, Maine, USA (2012).
  • Y. Ohishi, N. Hirao, T. Matsuoka, T. Mitsui and E. Ohtani; Energy-domain SR 57Fe-Mössbauer spectrometer for high-pressure mineral physics: Congress and General Assembly of the International Union of Crystallography (IUCr XIIV), Madrid, Spain (2011).
  • Y. Ohishi, N. Hirao, T. Matsuoka, K. Shimizu and M. Takata; High-Pressure/Low-Temperature X-ray Diffractometer combined with Raman spectrometer at BL10XU of SPring-8: Joint AIRAPT-22 & HPCJ-50, International Meeting on High Pressure Science and Technology, Tokyo, Japan (2009).
  • Y. Ohishi, N. Hirao, K. Hirose, M. Takata; X-ray Focusing by using Compound Refractive Lens optimized for High-pressure XRD at SPring-8; Congress and General Assembly of the International Union of Crystallography (IUCr XIV), Osaka, Japan(2008).
  • Y. Ohishi, N. Hirao, T. Iitaka, A. Machida and K. Aoki; Lattice Compression of Lithium Hydride up to 200GPa, Intenational Symposium on Metal-Hydogen Systems (MH2008), Reykjavik, Iceland (2008).
  • Y. Ohishi, M. Murakami, Y. Asahara, N. Hirao, N. Sata and K. Hirose; High pressure and high temperature in-situ Brillouin spectroscopy using infrared laser heating system combined with XRD at Spring-8, Workshop on Advances in High Pressure Crystallography at Large Scale Facilities, Oxford, UK (2007).
  • Y. Ohishi, K. Hirose, H. Kojitani, T. Watanuki and M. Takata; Compression of oxygen vacancy type Ai-bearing MgSiO3 perovskite, Congress and General Assembly of the International Union of Crystallography (IUCr XVIII), Florence, Italy (2005).
  • Y. Ohishi, M. Takata, A. Machida, T. Watanuki and K. Aoki; X-ray Diffraction of LiH under 125 GPa, International Union of Crystallography High Pressure Commission Workshop, Saskatoon, Saskatchewan, Canada (2004).
  • Y. Ohishi, M. Takata, E. Nishibori, M. Sakata, K. Takemura and O. Shimomura; Charge Density Distributions of Cs and Rb with s-d Transition, International Workshop on “Crystallography at High Pressure and High Temperature using X-rays and Neutrons”, SPring-8, Hyogo, Japan (2000).
  • Y. Ohishi, A. Q. Baron, M. Ishii, T. Ishikawa and O. Shimomura; Refractive x-ray lens for high pressure experiments at SPring-8, 7th International Conference on Synchrotron Radiation Instrumentation, Berlin, Germany (2000).
  • Y. Ohishi, O. Shimomura, M. Takata, E. Nishibori and M. Sakata; Accurate Structure Analyses of Cs High Pressure Phases Using SR Undulator Beam at SPring-8, Congress and General Assembly of the International Union of Crystallography (IUCr XVII), Glasgow, Scotland, UK (1999).

    • 国際会議発表

    • Y. Ohishi, N. Hirao, N. Sata, S. Tateno and K. Hirose; Recent progress on laser-heating system at SPring-8; in-situ XRD observations under the extreme conditions at the center of the Earth: SMEC 2011 Conference, Miami, Florida, USA (2011).
    • Y. Ohishi, N. Hirao, N. Sata, K. Shimizu, K. Hirose and M. Takata; The simultaneous measurement systems at the high-pressure diffraction beamline BL10XU of SPring-8: SMEC 2009 Conference, Miami Beach, Florida, USA (2009).
    • Y. Ohishi, N. Hirao, M. Murakami and K. Hirose; Recent developed DAC technique at SPring-8 to study deep Earth’s materials: International Workshop on Synchrotron High-Pressure Mineral Physics and Materials Science, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois USA (2007).
    • Y. Ohishi, N. Sata, S. Kohara and M. Takata; Recent Expansion of X-ray Diffraction Experiments using DAC at SPring-8, SMEC 2005 Conference, Miami Beach, Florida, USA (2005).
    • Y. Ohishi, T. Watanuki, N.Ishimatsu, T. Yamada, M. Isshiki, N. Hamaya and O. Shimomura; Recent DAC Researcher at SPring-8, International Conference on High Pressure Science and Technology (AIRAPT 2001), Beijin, China (2001).

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