Superconductivity in elements under very high pressure

• Project/Area Number: 19104009
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: Osaka University
• Principal Investigator: SHIMIZU Katsuya Osaka University, 教授 (70283736)
• Co-Investigator(Kenkyū-buntansha): 大石 泰生 (財)高輝度光科学研究センター, 利用促進部門I, 主幹研究員 (20344400) ; 加賀山 朋子 大阪大学, 極限量子科学研究センター, 准教授 (40274675) ; 長柄 一誠 鳥取大学, 工学研究科, 特任教授 (10135676) ; 鈴木 直 関西大学, システム理工学部, 教授 (40029559)
• Project Period (FY): 2007 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥126,230,000 (Direct Cost: ¥97,100,000、Indirect Cost: ¥29,130,000); Fiscal Year 2011: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000); Fiscal Year 2010: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000); Fiscal Year 2009: ¥26,780,000 (Direct Cost: ¥20,600,000、Indirect Cost: ¥6,180,000); Fiscal Year 2008: ¥23,400,000 (Direct Cost: ¥18,000,000、Indirect Cost: ¥5,400,000); Fiscal Year 2007: ¥54,470,000 (Direct Cost: ¥41,900,000、Indirect Cost: ¥12,570,000)
• Keywords: 圧力誘起超伝導 / 超高圧 / 元素 / 軽金属 / X線構造解析 / 第一原理計算 / 超伝導 / 単体元素 / 高温超伝導 / 高密度 / 分子動力学

Research Abstract

本研究の目的は、「高温超伝導」の機構解明と「室温超伝導」の実現につながる物質設計の指針を得ることにあり、以下の6項目について今年度の成果を記載する。
1. 水素の超高密度圧縮実験 水素を超高圧下まで封止が可能な電気測定用のガスケットの開発し、約20万気圧の圧力保持に成功した。低温液化水素充填装置による水素封入も安定動作を確認した。
2. 軽金属元素の超伝導 リチウムに次ぐ軽元素金属であるベリリウムの超伝導の圧力効果について30万気圧まで測定した。常圧で約30ミリケルビンの極低温度の超伝導転移温度は加圧によって1ケルビンを超えることを明らかにした。
3. 磁性金属元素の超伝導探索 イッテリビウムについて電気抵抗測定を行い約30万気圧までの範囲においては超伝導転移または磁性転移は起こさないことがわかった。ユーロピウムの高圧下の超伝導性が試料・純度・圧力状態の依存性が大きいことがわかった。
4. 超高圧下のX線構造解析 水素リッチなペロブスカイト型化合物についてその高圧力下結晶構造をSPring-8の超高圧実験ステーションおいて測定した。詳細な構造決定には至っていないが僅かな構造変化を捉えそれが高圧下での電気伝導度変化に起因すると解析した。
5. 結晶構造と超伝導の理論予測
6. 圧力発生技術開発 ダイヤモンドアンビルの台座側のデザインを変更し到達圧力を向上した。またナノ多結晶ダイヤモンドを用いて大容量試料空間において30～50%の高圧力発生に成功した。

Research Products

• [Journal Article] Ca-VI : A high-pressure phase of calcium above 158 GPa (2010)
  • Author(s): Y.Nakamoto, K.Shimizu, et al.
  • Journal Title: Phys.Rev.B. Volume: 81
  • Peer Reviewed
• [Journal Article] Significant static pressure increase in a precompression cell target for laser-driven advanced dynamic compression experiments (2010)
  • Author(s): T.Kimura, K.Shimizu, et al.
  • Journal Title: Phys.Plasmas Volume: 17
  • Peer Reviewed
• [Journal Article] Pressure-induced phase transition, metallization, and superconductivity in boron triiodide (2010)
  • Author(s): NozomuHamaya, K.Shimizu, et al.
  • Journal Title: Phys.Rev.B Volume: 82
  • Peer Reviewed
• [Journal Article] Superconductivity in alpha-Boron at Mbar Pressure (2010)
  • Author(s): Katsuya Shimizu, et al.
  • Journal Title: Physica C Volume: 470
  • Peer Reviewed
• [Journal Article] Electrical conductivities of pyrolitic mantle and MORB materials up to the lowermost mantle conditions (2010)
  • Author(s): Kenji Ohta, K.Shimizu, et.al.
  • Journal Title: Earth and Planetary Science Letters Volume: 289 Pages: 497-502
  • Peer Reviewed
• [Journal Article] The electrical resistance measurements of (Mg, Fe)SiO_3perovskite at high pressures and implications for electronic spin transition of iron (2010)
  • Author(s): Kenji Ohta, K.Shimizu, et al.
  • Journal Title: Physics of the Earth and Planetary Interiors Volume: 180 Pages: 154-158
  • Peer Reviewed
• [Journal Article] High-pressure experimental evidence for metal FeO with normal NiAs-type structure (2010)
  • Author(s): Kenji Ohta, K.Shimizu, et al.
  • Journal Title: Phys.Rev.B Volume: 82
  • Peer Reviewed
• [Journal Article] Suppression of metal-insulator transition at high pressure and pressure-induced magnetic ordering in pyrochlore oxide Nd2Ir2O7 (2010)
  • Author(s): Masafumi Sakata, K.Shimizu, et al.
  • Journal Title: Phys.Rev.B Volume: 83
  • NAID: 120002834726
  • Peer Reviewed
• [Journal Article] High-pressure phases of calcium : Prediction of phase VI and upper-pressure phases from first principles (2010)
  • Author(s): T.Ishikawa, H.Nagara, et al.
  • Journal Title: Phys.Rev.B Volume: 81
  • Peer Reviewed
• [Journal Article] Review of High Pressure Phases of Calcium by the First-principles Calculation (2010)
  • Author(s): T.Ishikawa, H.Nagara, et al.
  • Journal Title: J.Phys.: Conf.Ser. Volume: 215
  • Peer Reviewed
• [Journal Article] Origin of the simple modulated structures and the pressure induced superconductivity (2010)
  • Author(s): H.Nagara, et al.
  • Journal Title: J.Phys.: Conf.Ser. Volume: 215
  • Peer Reviewed
• [Journal Article] Electrical Conductivities of Pyrolitic Mantle and MORB Materials up to the Lowermost Mantle Conditions (2010)
  • Author(s): K.Ohta, et al.
  • Journal Title: Earth and Planetary Science Letters 289 Pages: 497-502
  • Peer Reviewed
• [Journal Article] Superconductivity in alpha-Boron at Mbar Pressure (2009)
  • Author(s): K. Shimizu, M. Kaneshige, Y. Hashimoto, T. Nagatochi, H. Hyodo, K. Kimura
  • Journal Title: Physica C
  • Peer Reviewed
• [Journal Article] Pressure-Induced Superconducting State of Europium Metal at Low Temperatures (2009)
  • Author(s): M. Debessai, T. Matsuoka, J. J. Hamlin, J. S. Schilling, K. Shimizu
  • Journal Title: Phys.Rev.Lett. 102
  • Peer Reviewed
• [Journal Article] Direct observation of a pressure-induced metal-to-semiconductor transition in lithium (2009)
  • Author(s): T. Matsuoka, K. Shimizu
  • Journal Title: Nature 458 Pages: 186-189
  • Peer Reviewed
• [Journal Article] Direct observation of a pressure-induced metal-to-semiconductor transition in lithium (2009)
  • Author(s): T.Matsuoka, et al.
  • Journal Title: Nature 458 Pages: 186-189
  • Peer Reviewed
• [Journal Article] Pressure-induced superconducting state in crystalline boron nanowires (2009)
  • Author(s): L.Sun et, al.
  • Journal Title: Phys.Rev.B 79
  • Peer Reviewed
• [Journal Article] Pressure-Induced Superconducting State of Europium Metal at Low Temperatures (2009)
  • Author(s): M.Debessai, et al.
  • Journal Title: Phys.Rev.Lett. 102
  • Peer Reviewed
• [Journal Article] Magnetic and Superconducting Properties of a Pressure-Induced Superconductor CePd_5Al_2 (2009)
  • Author(s): F.Honda, et al.
  • Journal Title: Physica B : Condensed Matter 404 Pages: 3202-3205
  • Peer Reviewed
• [Journal Article] Shock Hugoniot and temperature data for polystyrene obtained with quartz standard (2009)
  • Author(s): N.Ozaki, et al.
  • Journal Title: Physics of Plasma 16
  • Peer Reviewed
• [Journal Article] Pressere Induced Phase Transformation of Ba_8Ga_16Ge_30 Clathrate Studied by X-ray Diffraction and Raman Spectroscopy (2009)
  • Author(s): T.Kum
  • Journal Title: Journal of Applied Physics 107
  • Peer Reviewed
• [Journal Article] Pressure evolution of the low-temperature crystal structure and bonding of the superconductor FeSe (Tc=37K) (2009)
  • Author(s): S.Margadonna, et al.
  • Journal Title: Phys.Rev.B 80
  • Peer Reviewed
• [Journal Article] Raman and X-ray Diffraction Studies of Cationic Type-I Clathrate I_8Sb_8Ge_38 : Pressure-Induced Phase Transitions and Amorphization (2009)
  • Author(s): H.Shimizu, et al
  • Journal Title: Journal of Applied Physics 105-4 Pages: 31-34
  • Peer Reviewed
• [Journal Article] Structure of Pressure-Induced Amorphous Form of SnI_4 at High Pressure (2009)
  • Author(s): A.Ohmra, et al.
  • Journal Title: Physical Review B 80
  • Peer Reviewed
• [Journal Article] Analysis of phonon modes strongly coupled to electrons in high Tcsuperconducting phases of calcium (2009)
  • Author(s): T.Ishikawa, et al.
  • Journal Title: J.Phys. : Conf.Ser. 150
  • Peer Reviewed
• [Journal Article] Redox functionality mediated by adsorbed oxygen on a Pd oxide film over a Pd (100) thin structure : a first-principles study (2009)
  • Author(s): K.Kusakabe, et al.
  • Journal Title: J.Phys. : Condens.Matter 21
  • Peer Reviewed
• [Journal Article] Ab Initio Study on the Origin of the High Superconducting Transition Temperature in Calcium under High Pressure (2009)
  • Author(s): T.Ishikawa, et al.
  • Journal Title: High Pressure Research 29 Pages: 204-207
  • Peer Reviewed
• [Journal Article] V ariational density-functional perturbation theory with ultrasoft pseudopotentials (2009)
  • Author(s): I.Hamada, et al.
  • Journal Title: J.Compt. Theor. Nano. 6 Pages: 1-9
  • Peer Reviewed
• [Journal Article] (2009)
  • Author(s): 清水克哉
  • Journal Title: 超伝導ハンドブック(朝倉書店) Pages: 214-217
• [Journal Article] Crystal Structures of Calcium IV and V under High Pressure (2008)
  • Author(s): H. Fujihisa, Y. Nakamoto, K. Shimizu, T. Yabuuchi, Y. Gotoh
  • Journal Title: Phys.Rev.Lett. 101
  • Peer Reviewed
• [Journal Article] Pressure-Induced Superconductivity in CaLi_2 (2008)
  • Author(s): T. Matsuoka, M. Debessai, J. J. Hamlin, A. K. Gangopadhyay, J. S. Schilling, K. Shimizu
  • Journal Title: Phys.Rev.Lett. 100
  • Peer Reviewed
• [Journal Article] Appearance of Pressure-Induced Magnetic Phase in α-Manganese (2008)
  • Author(s): Keiki Takeda
  • Journal Title: J. Phys. Soc. Jpn. 77
  • Peer Reviewed
• [Journal Article] The Electrical Conductivity of Post-Perovskite in Earth's D" Layer (2008)
  • Author(s): Kenji Ohta
  • Journal Title: Science 320 Pages: 89-91
  • Peer Reviewed
• [Journal Article] Pressure-Induced Superconductivity in CaLi_2 (2008)
  • Author(s): K. Shimizu
  • Journal Title: Physical Review Letters 100
  • Peer Reviewed
• [Journal Article] High-pressure generation using high-purity synthetic type IIa diamond anvils (2008)
  • Author(s): H. Sumiya
  • Journal Title: High Pressure Research 28 Pages: 217-223
  • Peer Reviewed
• [Journal Article] Plastic deformation and optical behavior of high-purity synthetic diamond crystal subjected to high stress load at room temperature (2008)
  • Author(s): H. Sumiya
  • Journal Title: Applied Physics Letters 93
  • Peer Reviewed
• [Journal Article] Crystal Structures of Calcium IV and V under High Pressure (2008)
  • Author(s): H. Fujihisa
  • Journal Title: Phys. Rev. Lett. 101
  • Peer Reviewed
• [Journal Article] Superconductivity under high pressure in the binary compound CaLi_2 (2008)
  • Author(s): M. Debessai
  • Journal Title: Phys. Rev. B 78
  • Peer Reviewed
• [Journal Article] Charge-Density Waves, Incommensurate Modulations, and Superconductivity in Phosphorus and Iodine (2008)
  • Author(s): Takahiro Ishikawa
  • Journal Title: High Pressure Research 28 Pages: 459-467
  • Peer Reviewed
• [Journal Article] Theoretical Evidences for Enhanced Superconducting Transition Temperature of CaSi_2 in a High-Pressure AlB_2 Phase (2008)
  • Author(s): Akitaka Nakanishi
  • Journal Title: J. Phys. Soc. Jpn. 77 Pages: 104712-104716
  • Peer Reviewed
• [Journal Article] Appearance of Pressure-Induced Magnetic Phase in α-Manganese (2008)
  • Author(s): K. Takeda, et. al.
  • Journal Title: J. Phys. Soc. Jpn. 77 Pages: 25001-25001
  • Peer Reviewed
• [Journal Article] Theoretical study of the structure of calcium in phases IV and V via ab initio metadynamics simulation (2008)
  • Author(s): T. Ishikawa, et. al.
  • Journal Title: Phys. Rev. B 77
  • Peer Reviewed
• [Journal Article] Measurement of Electrical Resistance and Raman Spectrum of α-Boron under High Pressure (2007)
  • Author(s): M. Kaneshige, et. al.
  • Journal Title: J. Phys. Soc. Jpn. Supplement A 76 Pages: 19-20
  • Peer Reviewed
• [Journal Article] New superconductors under very high pressure (2007)
  • Author(s): K. Shimizu
  • Journal Title: J. Phys.: Condens. Matter 19
  • Peer Reviewed
• [Journal Article] Electrical Properties of YH_3 under High Pressure (2007)
  • Author(s): T. Matsuoka, et. al.
  • Journal Title: J. Phys. Soc. Jpn. Supplement A 76 Pages: 86-87
  • Peer Reviewed
• [Journal Article] Pressure-Induced Metallization of Molecular Crystal BI_3 (2007)
  • Author(s): S. Onoda, et. al.
  • Journal Title: J. Phys. Soc. Jpn. Supplement A 76 Pages: 33-34
  • Peer Reviewed
• [Journal Article] Crystal Structure and Electrical Property of Calcium under Very High Pressure (2007)
  • Author(s): Y. Nakamoto, et. al.
  • Journal Title: J. Phys. Soc. Jpn. Supplement A 76 Pages: 25-26
  • Peer Reviewed
• [Journal Article] Pressure Dependence of the Superconductivity in Strontium (2007)
  • Author(s): S. Mizobata, et. al.
  • Journal Title: J. Phys. Soc. Jpn. Supplement A 76 Pages: 23-24
  • Peer Reviewed
• [Journal Article] Generation of Multi-Megabar Pressure Using Nano-Polycrystalline Diamond Anvils (2007)
  • Author(s): Y. Nakamoto, et. al.
  • Journal Title: Jpn. J. Appl. Phys. 25
  • Peer Reviewed
• [Journal Article] Oxygen at High Pressures: Theoretical Approach to Monoatomic Phases (2007)
  • Author(s): T. Oda, et. al.
  • Journal Title: J. Phys.: Condens. Matter 19
  • Peer Reviewed
• [Journal Article] The role of the phonon anomaly in the superconductivity of vanadium and selenium under high pressures (2007)
  • Author(s): N. Suzuki, et. al.
  • Journal Title: J. Phys. Condens. Matter 19
  • Peer Reviewed
• [Presentation] Euの高圧下の磁性と超伝導 (2011)
  • Author(s): 清水克哉, 他
  • Organizer: 日本物理学会 第66回年次大会
  • Place of Presentation: 新潟県新潟市
  • Year and Date: 2011-03-28
• [Presentation] 単成分π共役系分子性固体の超高圧力下電気抵抗測定 (2011)
  • Author(s): 坂田雅文、清水克哉, 他
  • Organizer: 日本物理学会 第66回年次大会
  • Place of Presentation: 新潟県新潟市
  • Year and Date: 2011-03-28
• [Presentation] A15型化合物の高圧下における超伝導とマルテンサイト転移 (2011)
  • Author(s): 田中茂揮、清水克哉, 他
  • Organizer: 日本物理学会 第66回年次大会
  • Place of Presentation: 新潟県新潟市
  • Year and Date: 2011-03-26
• [Presentation] 高圧縮カルシウムにおける単純立方相の安定性に関する第一原理的研究 (2011)
  • Author(s): 石河孝洋、長柄一誠, 他
  • Organizer: 日本物理学会 第66回年次大会
  • Place of Presentation: 新潟県新潟市
  • Year and Date: 2011-03-26
• [Presentation] YbPdの温度圧力相図 (2011)
  • Author(s): 三宅厚志、清水克哉, 他
  • Organizer: 日本物理学会 第66回年次大会
  • Place of Presentation: 新潟県新潟市
  • Year and Date: 2011-03-25
• [Presentation] カルシウムの新規高圧相における超伝導 (2011)
  • Author(s): 坂田雅文、清水克哉, 他
  • Organizer: 日本物理学会 第66回年次大会
  • Place of Presentation: 新潟県新潟市
  • Year and Date: 2011-03-25
• [Presentation] 水素吸蔵合金の超高圧環境下の電気的・磁気的研究 (2011)
  • Author(s): 清水克哉, 他
  • Organizer: 第4回水素貯蔵材料先端基盤研究事業技術検討会議
  • Place of Presentation: 東京都港区
  • Year and Date: 2011-01-13
• [Presentation] 単体元素の超高圧下物性研究の現状と問題点 (2011)
  • Author(s): 清水克哉
  • Organizer: 科学研究費 基盤(B) &基盤(S)合同研究会
  • Place of Presentation: 石川県金沢市
  • Year and Date: 2011-01-08
• [Presentation] α-rhombohedral boronの超伝導転移温度の圧力依存性 (2010)
  • Author(s): 橋本祥史、清水克哉, 他
  • Organizer: ホウ素・ホウ化物研究会
  • Place of Presentation: 木阪府吹田市
  • Year and Date: 2010-12-11
• [Presentation] Earth and planetary science study with Gekko-XII-HIPER laser facility at ILE, Osaka University (2010)
  • Author(s): Keisuke Shigemori, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-09
• [Presentation] Relationship between Structural Phase Transition and Superconducting Transition Temperature of Ca under High Pressure (2010)
  • Author(s): Masafumi Sakata, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-09
• [Presentation] Pressure dependence of the superconducting transition temperature of Nb3Sn (2010)
  • Author(s): Handoko, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-09
• [Presentation] Electrical resistance measurement of II-conjugated molecular solids under ultra high pressure (2010)
  • Author(s): Kentaro Okumoto, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-09
• [Presentation] High pressure effect on property of perovskite hydrides, CaNiH3 and CaCoH3 (2010)
  • Author(s): Huyen Nguyen, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-09
• [Presentation] Magnetism and superconductivity of Eu under pressure (2010)
  • Author(s): Satoshi Tatsukawa, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-09
• [Presentation] Electrical resistivity study on PdH under high pressure (2010)
  • Author(s): Yasuhiro Asakura, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-09
• [Presentation] Electrical conduction property of solid iodine in phase I (2010)
  • Author(s): Yu Tanaka, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-09
• [Presentation] Pressure dependence of Tc in α-rhombohedral Boron (2010)
  • Author(s): Yoshifumi Hashimoto, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-09
• [Presentation] Electrical properties of CaB6 under high pressure and low temperature (2010)
  • Author(s): Yonghao Han, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-08
• [Presentation] On the Way to Metallic and Superconductive Phase of YH3 (2010)
  • Author(s): Zhenhua Chi, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-08
• [Presentation] Superconductivity in phosphorus under high pressure---SC, modulated, and SH phases--- (2010)
  • Author(s): Akitaka Nakanishi, K.Shimizu, et al.
  • Organizer: 5th Asian Conference on High Pressure Research
  • Place of Presentation: 島根県松江市
  • Year and Date: 2010-11-07
• [Presentation] ユウロピウムの高圧下の磁性と超伝導 (2010)
  • Author(s): 立川聡、清水克哉, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-22
• [Presentation] α-rhombohedral Boronの超伝導転移温度の圧力依存性 (2010)
  • Author(s): 橋本祥史、清水克哉, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-22
• [Presentation] 高水素圧力下におけるFeHxの電気伝導特性と結晶構造 (2010)
  • Author(s): 松岡岳洋、清水克哉, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-22
• [Presentation] 単成分II共役系分子性固体の超高圧力下電気抵抗測定 (2010)
  • Author(s): 奥本健太郎、清水克哉, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-22
• [Presentation] レーザー衝撃圧縮を用いた液体水素のオフユゴニオ計測 (2010)
  • Author(s): 佐野孝好、清水克哉, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-22
• [Presentation] ダイヤモンドアンビルセルとレーザーショックを用いた静・動カップリング圧縮法による水の超高密度状態の生成 (2010)
  • Author(s): 木村友亮、清水克哉, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-22
• [Presentation] リンにおける圧力誘起超伝導の第一原理的研究 (2010)
  • Author(s): 中西章尊、長柄一誠, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-22
• [Presentation] 単体リチウムの圧力誘起金属半導体転移 (2010)
  • Author(s): 後藤直幸、長柄一誠, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-21
• [Presentation] カルシウムの圧力下における新規相転移と超伝導転移温度との関連性 (2010)
  • Author(s): 坂田雅文、清水克哉, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-20
• [Presentation] 高圧下におけるカルシウムVI, VII相の構造解析 (2010)
  • Author(s): 中本有紀、清水克哉, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-20
• [Presentation] ナノ多結晶ダイヤモンドアンビルによる高圧発生と変形挙動 (2010)
  • Author(s): 角谷均、清水克哉, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-20
• [Presentation] SPring-8の技術集約的新型低温高圧X線回折装置 (2010)
  • Author(s): 大石泰生, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-20
• [Presentation] カルシウムにおける単純立方構造の安定性に関する第一原理的研究 (2010)
  • Author(s): 石河孝洋、長柄一誠, 他
  • Organizer: 第51回高圧討論会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-10-20
• [Presentation] 超高圧で見られる元素の超伝導 (2010)
  • Author(s): 清水克哉
  • Organizer: 『アインシュタインの物理』でリンクする研究・教育拠点研究会
  • Place of Presentation: 大阪府大阪市(招待講演)
  • Year and Date: 2010-10-15
• [Presentation] 単結晶V3Siの超伝導の圧力依存性 (2010)
  • Author(s): 由中茂揮、清水克哉, 他
  • Organizer: 日本物理学会 2010年秋季大会
  • Place of Presentation: 大阪府堺市
  • Year and Date: 2010-09-24
• [Presentation] YbPdの圧力下電気抵抗・交流比熱測定 (2010)
  • Author(s): 三宅厚志、清水克哉, 他
  • Organizer: 日本物理学会 2010年秋季大会
  • Place of Presentation: 大阪府堺市
  • Year and Date: 2010-09-23
• [Presentation] ダイヤモンドアンビルセルと高エネルギーレーザーショックを用いたカップリング圧縮法による水の超高密度状態の生成 (2010)
  • Author(s): 木村友亮、清水克哉, 他
  • Organizer: 日本物理学会 2010年秋季大会
  • Place of Presentation: 大阪府堺市
  • Year and Date: 2010-09-23
• [Presentation] First-principles study on structures and superconductivity of high pressure phases of calcium (2010)
  • Author(s): N.Suzuki, H.nagara, et al.
  • Organizer: ψk-2010 Conference
  • Place of Presentation: 独国ベルリン市
  • Year and Date: 2010-09-12
• [Presentation] Superconductivity at very high pressure (2010)
  • Author(s): Katsuya Shimizu, et al.
  • Organizer: On the heavy Fermion Road
  • Place of Presentation: フランス国パリ市(招待講演)
  • Year and Date: 2010-08-30
• [Presentation] Superconductivity at very high pressure (2010)
  • Author(s): Katsuya Shimizu, et al.
  • Organizer: Kick-off conference on Pressure effects on Materials
  • Place of Presentation: 米国カリフォルニア州(招待講演)
  • Year and Date: 2010-08-23
• [Presentation] Electrical resistance measurement of solid iodine in phase-V (2010)
  • Author(s): Katsuya Shimizu, et al.
  • Organizer: The 14th International Conference on High Pressure Semiconductor Physics
  • Place of Presentation: 中国長春市(招待講演)
  • Year and Date: 2010-08-02
• [Presentation] 単体元素の高圧下超伝導 (2010)
  • Author(s): 清水克哉
  • Organizer: 希土類に関連した再生可能エネルギー材料科学およびサスティナブル材料開発
  • Place of Presentation: 北海道室蘭市(招待講演)
  • Year and Date: 2010-07-23
• [Presentation] Electrical resistance measurement of solid iodine in phase-V (2010)
  • Author(s): Katsuya Shimizu, et al.
  • Organizer: Gordon Research Conference on "High Pressure, Research At"
  • Place of Presentation: USA, Holderness
  • Year and Date: 2010-06-28
• [Presentation] Pressure induced insulator-metal transition of yttrium tri-hydride (YH3) (2010)
  • Author(s): Huyen Nguyen, K.Shimizu, et al.
  • Organizer: Gordon Research Conference on "High Pressure, Research At"
  • Place of Presentation: USA, Holderness
  • Year and Date: 2010-06-28
• [Presentation] A New Structural Phase Transition of Calcium at 158 GPa (2010)
  • Author(s): Yuki Nakamoto, K.Shimizu, et al.
  • Organizer: Gordon Research Conference on "High Pressure, Research At"
  • Place of Presentation: USA, Holderness
  • Year and Date: 2010-06-28
• [Presentation] Superconductivity in simple systems at very high pressure (2010)
  • Author(s): Katsuya Shimizu, et al.
  • Organizer: International Conference on GCOE & 3rd-ICNDR
  • Place of Presentation: 大阪府豊中市
  • Year and Date: 2010-06-01
• [Presentation] 超高圧下におけるダイアモンドの物性研究 (2010)
  • Author(s): 清水克哉, 他
  • Organizer: レーザー研シンポジウム2010
  • Place of Presentation: 大阪府吹田市
  • Year and Date: 2010-04-27
• [Presentation] 高圧力下におけるイッテルビウムの電気抵抗測定 (2010)
  • Author(s): 萩原稔也, 他
  • Organizer: 日本物理学会 第65回年次大会
  • Place of Presentation: 岡山
  • Year and Date: 2010-03-21
• [Presentation] V3Siの超伝導の圧力依存性II (2010)
  • Author(s): 田中茂揮, 他
  • Organizer: 日本物理学会 第65回年次大会
  • Place of Presentation: 岡山
  • Year and Date: 2010-03-20
• [Presentation] 高濃度ボロンドープダイヤモンド単結晶薄膜の超伝導転移温度とキャリア密度の圧力依存性 (2010)
  • Author(s): 沖尚浩, 他
  • Organizer: 日本物理学会 第65回年次大会
  • Place of Presentation: 岡山
  • Year and Date: 2010-03-20
• [Presentation] Pressure-induced metallization and superconductivity in halogen molecular crystals and related systems (2010)
  • Author(s): H.Nguyen, et al.
  • Organizer: 5th ?JAEA Symposium on Synchrotron Radiation ?Research-Material Science on Metal Hydride-
  • Place of Presentation: Hyogo
  • Year and Date: 2010-02-25
• [Presentation] Photoconductivity in Compressed Transparent Yttrium Hydride (2010)
  • Author(s): Z.Chi, et al.
  • Organizer: 5th JAEA Symposium on Synchrotron Radiation? Research-Material Science on Metal Hydride-
  • Place of Presentation: Hyogo
  • Year and Date: 2010-02-25
• [Presentation] Pressure-induced metallization and superconductivity in halogen molecular crystals and related systems (2009)
  • Author(s): K.Shimizu, et al.
  • Organizer: 2nd SKLSHM-KYOKUGEN WorkshoP
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] Structure analysis and phase transitions under ultra high pressure in SPring-8 (2009)
  • Author(s): Y.Ohishi, et al.
  • Organizer: 2nd SKLSHM-KYOKUGEN Workshop
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] Thermal Expansion and Magnetostriction at High Pressure (2009)
  • Author(s): T.Kagayama, et al.
  • Organizer: 2nd SKLSHM-KYOKUGEN Workshop
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] Pressure-Temperature Phase Diagram of Superconducting Clathrate Ba_24Ge_100 (2009)
  • Author(s): A.Miyakse, et al.
  • Organizer: 2nd SKLSHM-KYOKUGEN Workshop
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] Crystal structure of the high Pressure Phase of Calcium Having 25K Superconductivity (2009)
  • Author(s): Y.Nakamoto, et al.
  • Organizer: 2nd SKLSHM-KYOKUGEN Workshop
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] Photoconductivity in compressed transparent Yttrium Hydride (2009)
  • Author(s): Z.Chi, et al.
  • Organizer: 2nd SKLSHM-KYOKUGEN WorkshoP
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] The pressure induced Insulator-metal transition of yttrium tri-hydride (YH3). (2009)
  • Author(s): H.Nguyen, et al.
  • Organizer: 2nd SKLSHM-KYOKUGEN Workshop
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] Pressure dependence of TN and superconductivity in Eu (2009)
  • Author(s): S.Tatsukawa, et al.
  • Organizer: 2nd SKLSHM-KYOKUGEN Workshop
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] Superconductivity in α-rhombohedral Boron at Mbar Pressure (2009)
  • Author(s): Y.Hashimoto, et al.
  • Organizer: 2nd SKLSHM-KYOUGEN Workshop
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] High Pressure Synthesis and Electrical Resistance Measurement of Ba_1-xKxBiO_3 (2009)
  • Author(s): K.Nakama, al.
  • Organizer: 2nd SKLSHM-KYOKUGEN Workshop
  • Place of Presentation: Changchun, China
  • Year and Date: 2009-12-09
• [Presentation] 低温高圧下のX線回折と電気伝導度の同時測定 (2009)
  • Author(s): 清水克哉
  • Organizer: 第49回高圧討論会
  • Place of Presentation: 姫路市
  • Year and Date: 2009-11-13
• [Presentation] 高結晶性グラファイトフィルムの高圧力下における電気抵抗測定 (2009)
  • Author(s): 小名哲史
  • Organizer: 第49回高圧討論会
  • Place of Presentation: 姫路市
  • Year and Date: 2009-11-12
• [Presentation] べリリウムの超伝導探索の圧力効果 (2009)
  • Author(s): 萩原稔也
  • Organizer: 第49回高圧討論会
  • Place of Presentation: 姫路市
  • Year and Date: 2009-11-12
• [Presentation] リチウムの圧力誘起半導体化の探索 (2009)
  • Author(s): 松岡岳洋
  • Organizer: 第49回高圧討論会
  • Place of Presentation: 姫路市
  • Year and Date: 2009-11-12
• [Presentation] 高純度ナノ多結晶ダイヤモンドによる超高圧発生II (2009)
  • Author(s): 中本有紀
  • Organizer: 第49回高圧討論会
  • Place of Presentation: 姫路市
  • Year and Date: 2009-11-12
• [Presentation] 超高圧下てIのα-rhombohedral boronの電気抵抗測定 (2009)
  • Author(s): 橋本祥史, 他
  • Organizer: 配列ナノ空間を利用した新物質科学第二回若手研究会
  • Place of Presentation: 新潟
  • Year and Date: 2009-11-02
• [Presentation] V3Siの超伝導の圧力依存性 (2009)
  • Author(s): 田中茂揮, 他
  • Organizer: 日本物理学会 2009年秋季大会
  • Place of Presentation: 熊本
  • Year and Date: 2009-09-28
• [Presentation] ボロンドープダイヤモンドの超伝導転移温度の圧力依存性 (2009)
  • Author(s): 沖尚浩, 他
  • Organizer: 日本物理学会 2009年秋季大会
  • Place of Presentation: 熊本
  • Year and Date: 2009-09-25
• [Presentation] 超高圧力の科学と技術が拓く物質科学 (2009)
  • Author(s): 清水克哉
  • Organizer: G-COE若手秋の学校「新しい量子物質・物性・機能の研究」
  • Place of Presentation: 滋賀
  • Year and Date: 2009-09-15
• [Presentation] High pressure induced superconductivity in light elements (2009)
  • Author(s): K. Shimizu
  • Organizer: The 9th International Conference on Materials and Mechanisms of Superconductivity (M2S-IX)
  • Place of Presentation: Tokyo
  • Year and Date: 2009-09-10
• [Presentation] Insulator to metal transition in compressed YH x(x～3) (2009)
  • Author(s): T.Matsuoka, et al.
  • Organizer: European High Pressure Research Group meeting
  • Place of Presentation: Pari, France
  • Year and Date: 2009-09-10
• [Presentation] High pressure induced superconductivity in light elements (2009)
  • Author(s): K.Shimizu
  • Organizer: The 9th International Conference on Materials and ?Mechanisms of Superconductivity (M2S-IX)
  • Place of Presentation: Tokyo
  • Year and Date: 2009-09-10
• [Presentation] Wide angle X-ray diffraction for shocked single crystal (2009)
  • Author(s): Y.Hironaka, et al.
  • Organizer: Joint AIRAPT-22 & HPCJ-50
  • Place of Presentation: Tokyo
  • Year and Date: 2009-07-30
• [Presentation] Multiple Shock Compression of Diamond Foils with Shaped Laser Pulse (2009)
  • Author(s): K.Shigemori, et al.
  • Organizer: Joint AIRAPT-22 & HPCJ-50
  • Place of Presentation: Tokyo
  • Year and Date: 2009-07-30
• [Presentation] Pressure effect of superconducting transition temperature for Boron-Doped (111) Diamond films (2009)
  • Author(s): N.Oki, et al.
  • Organizer: Joint AIRAPT-22 & HPCJ-50
  • Place of Presentation: Tokyo
  • Year and Date: 2009-07-30
• [Presentation] Static compression experiments using phosphor bronze gasket and new anvil material for coupling technique of laser-shock and precompression target (2009)
  • Author(s): T.Kimura, et al.
  • Organizer: Join AIRAPT-22 & HPCJ-50
  • Place of Presentation: Tokyo
  • Year and Date: 2009-07-30
• [Presentation] Review of High Pressure Phases of C alcium by the First-principles Calculation (2009)
  • Author(s): T. Ishikawa, H. Nagara, K. Kusakabe, N. Suzuki, J. Tsuchiya, T. Tsuchiya
  • Organizer: Joint AIRAPT-22 & HPCJ-50
  • Place of Presentation: Tokyo
  • Year and Date: 2009-07-29
• [Presentation] Metal to Semiconductor Transition in Dense Lithium (2009)
  • Author(s): T.Matsuoka, et al.
  • Organizer: Joint AIRAPT-22 & HPCJ-50
  • Place of Presentation: Tokyo
  • Year and Date: 2009-07-28
• [Presentation] High-Pressure/Low-Temperature X-ray Diffractometer combined with Raman spectrometer at BL10XU of SPring-8 (2009)
  • Author(s): Y.Ohishi, et al.
  • Organizer: Joint AIRAPT-22 & HPCJ-50
  • Place of Presentation: Tokyo
  • Year and Date: 2009-07-28
• [Presentation] Pressure-induced Superconductivity in Crystalline Boron Nanowires (2009)
  • Author(s): L.Sun, et al.
  • Organizer: Joint AIRAPT-22 & HPCJ-50
  • Place of Presentation: Tokyo
  • Year and Date: 2009-07-28
• [Presentation] Diamond Anvil Using Nano-Polycrystalline Diamond for the High-Pressure Generation (2009)
  • Author(s): Y.Nakamoto, et al.
  • Organizer: Joint AIRAPT-22 & HPCJ-50
  • Place of Presentation: Tokyo
  • Year and Date: 2009-07-28
• [Presentation] 超高圧を用いた物性解析と機能探索 (2009)
  • Author(s): 清水克哉
  • Organizer: 日本物理学会 第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-27
• [Presentation] Electrical resistivity measurements of α-Boron at high pressure and low temperature (2008)
  • Author(s): Katsuya Shimizu
  • Organizer: THE 4TH ASIAN CONFERENCE ON HIGH PRESSURE RESEARCH
  • Place of Presentation: ソウル市、韓国
  • Year and Date: 2008-10-15
• [Presentation] AC susceptibi1ity measurement under high pressure by using DAC (2008)
  • Author(s): Yuki Nakagawa
  • Organizer: THE 4TH ASIAN CONFERENCE ON HIGH PRESSURE RESEARCH
  • Place of Presentation: ソウル市、韓国
  • Year and Date: 2008-10-15
• [Presentation] Electrical resistivity measurements of highly crystallized graphite under high pressure (2008)
  • Author(s): Satoshi Ona
  • Organizer: THE 4TH ASIAN CONFERENCE ON HIGH PRESSURE RESEARCH
  • Place of Presentation: ソウル市、韓国
  • Year and Date: 2008-10-15
• [Presentation] Development of cryogenic gas-loading system for metal hydride study (2008)
  • Author(s): Nguyen T. L. Huyen
  • Organizer: THE 4TH ASIAN CONFERENCE ON HIGH PRESSURE RESEARCH
  • Place of Presentation: ソウル市、韓国
  • Year and Date: 2008-10-15
• [Presentation] Electrical resistivity measurements of α-Boron at high pressure and low temperature (2008)
  • Author(s): K. Shimizu, M. Kaneshige, H. Hyoudo, K. Kimura
  • Organizer: The 4th Asian Conference on High Pressure Research
  • Place of Presentation: Seoul
  • Year and Date: 2008-10-14
• [Presentation] DACを用いた高圧下の交流磁化率測定及び核磁気共鳴測定 (2008)
  • Author(s): 中川悠葵
  • Organizer: 日本物理学会 2008年秋季大会
  • Place of Presentation: 岩手市
  • Year and Date: 2008-09-21
• [Presentation] 単体金属イットリウムの超高圧下における超伝導と結晶構造 (2008)
  • Author(s): 清水克哉
  • Organizer: 日本物理学会 2008年秋季大会
  • Place of Presentation: 岩手市
  • Year and Date: 2008-09-20
• [Presentation] 高強度レーザー光を用いた高圧凝縮物性研究 ; ショックユゴニオ計測とオフユゴニオヘの展開 (2008)
  • Author(s): 尾崎典雅
  • Organizer: 日本物理学会 2008年秋季大会
  • Place of Presentation: 岩手市
  • Year and Date: 2008-09-20
• [Presentation] Exploring higher T_c superconducting element (2008)
  • Author(s): K. Shimizu
  • Organizer: Gordon Conference on Research at High Pressures
  • Place of Presentation: Main, USA
  • Year and Date: 2008-08-01
• [Presentation] Expioring higher Tc superconducting element (2008)
  • Author(s): 松岡岳洋
  • Organizer: Gordon Conference on Research at High Pressures
  • Place of Presentation: Biddeford, Maine, USA
  • Year and Date: 2008-07-02
• [Presentation] Superconducting elements under very high pressure at 〜20 K (2007)
  • Author(s): K. Shimizu
  • Organizer: UK-Japan Workshop on Advanced Materials
  • Place of Presentation: Edinburgh, Scotland, UK
  • Year and Date: 2007-12-11
• [Presentation] 超高圧力下における超伝導元素の研究 (2007)
  • Author(s): 清水克哉
  • Organizer: 日本物理学会 第62回年次大会 シンポジウム
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-23
• [Presentation] Determining the structure of compressed calcium in phase V by the ab-initio molecular dynamics simulation (2007)
  • Author(s): T. Ishikawa, et. al.
  • Organizer: Joint 21th AIRAPT and 45th EHPRG conference on Science and Technology of High Pressure
  • Place of Presentation: University of Catania, Catania, Italy
  • Year and Date: 2007-09-17
• [Presentation] High-Tc superconducting elements under very high pressures (2007)
  • Author(s): K. Shimizu
  • Organizer: Workshop on The Road to Room Temperature Superconductivity
  • Place of Presentation: Loen, Norway
  • Year and Date: 2007-06-22
• [Book] 超伝導ハンドブック 福山秀敏秋光純編 (2009)
  • Author(s): 清水克哉
  • Publisher: 朝倉書店
• [Remarks] 日刊工業新聞24面「キラリ研究開発41回全ての物質が超伝導に? 超不思議な超高圧の世界」2010.2.1 (前編) 2010.2.15 (後編)
• [Remarks] 朝日新聞17面「高圧低温で通電ストップリチウムが半導体に変化」、2009.4.7