Investigation of electrical properties under pressure

2011 Fiscal Year Final Research Report

• Project/Area Number: 21340092
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: The University of Tokyo
• Principal Investigator: UWATOKO Yoshiya 東京大学, 物性研究所, 准教授 (40213524)
• Co-Investigator(Kenkyū-buntansha): MATSUBAYASHI Kazuyuki 東京大学, 物性研究所, 助教 (10451890) ; MUNAKATA Koji 東京大学, 物性研究所, 技術職員 (00363408)
• Co-Investigator(Renkei-kenkyūsha): UMEHARA Izuru 横浜国立大学, 工学研究科, 教授 (90251769) ; ASO Naofumi 琉球大学, 理学部, 准教授 (40313118) ; NAKAMURA Toshikazu 分子科学研究所, 准教授 (50245370) ; SHIGEOKA Toru 山口大学, 理工学研究科, 教授 (50167441) ; FUJIWARA Tetsuya 山口大学, 理工学研究科, 助教 (10432733) ; HEDO Masato 琉球大学, 理学部, 准教授 (00345232)
• Project Period (FY): 2009 – 2011
• Keywords: 高圧力 / 相転移 / キュービックアンビル

Research Abstract

In this investigation, we completed Palm Cubic Anvil High Pressure Cell(PCAC) as a device to perform the physical properties measurements. Magnetization and specific heat have been measured under high magnetic field up to 2 GPa. By using these devices, we clarified physical properties of superconducting phenomena under pressure.

Research Products

• [Journal Article] Pressure-induced changes in the magnetic and valence state of EuFe_2As_2 (2011)
  • Author(s): K. Matsubayashi, K. Munakata, M. Isobe, N. Katayama, K. Ohgushi, Y. Ueda, N. Kawamura, M. Mizumaki, N. Ishimatsu, M. Hedo, I. Umehara, Y. Uwatoko, Phys. Rev. B.
  • Volume: 84
  • Pages: 024502(1-6)
• [Journal Article] High-pressure ac specific heat technique with cubic anvil apparatus (2010)
  • Author(s): K. Matsubayashi, M. Hedo, I. Umehara, N. Katayama, K. Ohgushi, A. Yamada, K. Munakata, T. Matsumoto, Y. Uwatoko
  • Volume: 215
  • Pages: 012187(1-5)
• [Journal Article] Pressure-induced variation of Kondo behavior on the heavy fermion compounds YbT_2Zn_<20>(T=Co, Rh, Ir) (2010)
  • Author(s): K. Matsubayashi, Y. Saiga, T. Matsumoto, Y. Uwatoko
  • Volume: 200
  • Pages: 012112(1-5)
• [Journal Article] Magnetic ordering and dense Kondo behavior in EuFe_2P_2 (2010)
  • Author(s): CM. Feng, Z. Ren, SG. Xu, SA. Jiang, ZA. Xu, GH. Cao, I. Nowik, I. Felner, K. Matsubayashi, Y. Uwatoko
  • Volume: 82
  • Pages: 094426(1-8)
• [Journal Article] Fermi-liquid properties of the heavy fermion systems YbT_2Zn_<20>(T=Ir, Rh and Co) under pressure (2009)
  • Author(s): K. Matsubayashi, Y. Saiga, T. Matsumoto, Y. Uwatoko
  • Volume: 150
  • Pages: 042117(1-5)
• [Journal Article] Intrinsic Properties of AFe_2As-2(A=Ba, Sr) Single Crystal under Highly Hydrostatic Pressure Conditions (2009)
  • Author(s): K. Matsubayashi, N. Katayama, K. Ohgushi, A. Yamada, K. Munakata, T. Matsumoto, Y. Uwatoko
  • Volume: 78
  • Pages: 073706(1-4)
• [Presentation] EuT_2As_2(T=Co, Ni)における反強磁性秩序の圧力効果 (2012)
  • Author(s): 松林和幸,平山貴士,磯部正彦,大串研也,上田寛,上床美也
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学西宮上ケ原キャンパス
  • Year and Date: 2012-03-25
• [Presentation] 小型キュービックアンビル圧力発生装置の開発とエキシトニック絶縁体Ta_2NiSe_5における圧力誘起超伝導 (2011)
  • Author(s): 松林和幸,山中里奈,片山尚幸,久田旭彦,平山貴士,野原実,高木英典,上床美也
  • Organizer: 高圧討論会
  • Place of Presentation: 沖縄キリスト教学院大学
  • Year and Date: 2011-11-10
• [Presentation] Possible Superconductivity at the Border between Exotic Insulating and Metallic States (2011)
  • Author(s): K. Matsubayashi, T. Terai, R. Yamanaka, N. Katayama, M. Nohara, H. Takagi, CQ Jin, J. S. Zhou, Y. Uwatoko
  • Organizer: International Conference on High Pressure Science and Technology
  • Place of Presentation: Bhabha Atomic Research Center
  • Year and Date: 2011-09-26
• [Presentation] Effect of Pressure on the physical properties of EuFe_2As_2 (2011)
  • Author(s): K. Matsubayashi, K. Munakata, M. Isobe, N. Katayama, K. Ohgushi, Y. Ueda, N. Kawamura, M. Mizumaki, N. Ishimatsu, M. Hedo, I. Umehara, Y. Uwatoko
  • Organizer: International Conference on High Pressure Science and Technology
  • Place of Presentation: Bhabha Atomic Research Center
  • Year and Date: 2011-09-26
• [Presentation] Pressure-and Magnetic Field-induced Quantum Critical Phenomena in Yb-based Heavy Fermion Compounds (2011)
  • Author(s): K. Mastubayashi
  • Organizer: TOKIMEKI 2011 International workshop on heavy fermions
  • Place of Presentation: Osaka University Low Temperature Properties of a Low Carrier Heavy Fermion YbPtSb
  • Year and Date: 2011-09-23
• [Presentation] 重い電子系物質YbCo_2Zn_<20>における圧力・磁場中相図 (2011)
  • Author(s): 松林和幸,山中里奈,才賀裕太,河江達也,上床美也
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学五福キャンパス
  • Year and Date: 2011-09-23
• [Presentation] International Conference on Strongly Correlated Electron Systems(SCES 2011) (2011)
  • Author(s): K. Matsubayashi, H. Suzuki, R. Yamanaka, K. Munakata, Y. Uwatoko
  • Place of Presentation: Cambridge, UK
  • Year and Date: 2011-08-31
• [Presentation] Pressure induced physical phenomena of Ce and Yb Compounds (2011)
  • Author(s): Yoshiya Uwatoko
  • Organizer: 26th Rare Earth Research Conference
  • Place of Presentation: Inn and Spa at LORETTO
  • Year and Date: 2011-06-20
• [Presentation] 重い電子系反強磁性体YbPtSbの高圧下・磁場中における物性測定 (2011)
  • Author(s): 松林和幸,鈴木博之,宗像孝司,上床美也
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 新潟大学五十嵐キャンパス
  • Year and Date: 2011-03-25
• [Presentation] 鉄系超伝導体AFeAs(A=Li, Na)単結晶試料の静水圧下における温度・圧力相図 (2010)
  • Author(s): 松林和幸,北川健太郎,目崎雄二,瀧川仁,上床美也
  • Organizer: 第51回高圧討論
  • Place of Presentation: 仙台市戦災復興記念館
  • Year and Date: 2010-10-22
• [Presentation] NaFeAs純良単結晶試料における圧力誘起バルク超伝導 (2010)
  • Author(s): 松林和幸,目崎雄二,北川健太郎,宗像孝司,瀧川仁,上床美也
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
  • Year and Date: 2010-09-25
• [Presentation] 鉄系超伝導体LiFeAsの純良単結晶における超伝導特性 (2010)
  • Author(s): 松林和幸,北川健太郎,目崎雄二,宗像孝司,瀧川仁,上床美也
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学津島キャンパス
  • Year and Date: 2010-03-21
• [Presentation] Ac Specific Heat Measurement underPressure with Cubic Anvil Apparatus (2009)
  • Author(s): K. Matsubayashi, A. Yamada, K. Munakata, M. Hedo, I. Umehara, N. Katayama, K. Ohgushi, T. Matsumoto, Y. Uwatoko
  • Organizer: 第50回高圧討論会
  • Place of Presentation: お台場・東京国際交流館
  • Year and Date: 2009-07-29
• [Presentation] Development of a Palm Cubic Anvil Cell for Low Temperature (2009)
  • Author(s): Y. Uwatoko, K. Matsubayashi, K. Munakata, T. Matsumoto, A. Yamada, M. Hedo, S. Tabata, K. Takagi, M. Tado, H. Kagi
  • Organizer: 第50回高圧討論会
  • Place of Presentation: お台場・東京国際交流館
  • Year and Date: 2009-07-28
• [Book] Thermal and Electronic Properties of Rare Earth Compounds at High Pressure (2012)
  • Author(s): Y. Uwatoko, I. Umehara, M. Ohashi, T. Nakano, and G. Oomi
  • Total Pages: 1-164