Heat capacity measurement of heavy Fermion superconductors without inversion symmetry under pressure and magnetic field

2011 Fiscal Year Final Research Report

• Project/Area Number: 21540354
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Yokohama National University
• Principal Investigator: UMEHARA Izuru 横浜国立大学, 工学研究院, 教授 (90251769)
• Project Period (FY): 2009 – 2011
• Keywords: 圧力誘起超伝導体 / 強相関係 / 重い電子系

Research Abstract

We clarified the relationship between antiferromagnetism and superconductivity vicinity of quantum critical point by means the measurements of heat capacity under pressure and magnetic field。The behavior of heat capacity in the pressure region of only superconductivity appears is different from that in the coexisting pressure region(superconductivity and antiferromagnetism), which has the structure comes from reproducing of magnetism.

Research Products

• [Journal Article] Pressure effect on magnetic and magnetocaloric properties in GdCo_2B_2 compound (2012)
  • Author(s): L. Li, G. Hu, I. Umehara. D. Huo, T. Namiki, Katsuhiko Nishimura
  • Journal Title: Journal of Physical Society of Japan
  • Peer Reviewed
• [Journal Article] Pressure Effect in Multiferroic Phase Transition of Perovskite Ferrite Crystals NdFeO_3 and ErFeO_3 (2012)
  • Author(s): G. Hu, I. Umehara. S. Cao
  • Journal Title: Journal of Physics : Conference Series
  • Peer Reviewed
• [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, and Y. Uwatoko
  • Journal Title: Phys. Rev Volume: 84 Pages: 024502-024508
  • Peer Reviewed
• [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
  • Journal Title: Journal of Physics Volume: 215 Pages: 12187-12190
  • Peer Reviewed
• [Presentation] EuCo_2P_2とYbMn_2Ge_2の高圧下交流法熱容量測定 (2011)
  • Author(s): 鈴木俊平太、梅原出
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院
  • Year and Date: 2011-11-10
• [Presentation] 接待力生CeIrSi_3の高圧力下磁場中における比熱測定の試み (2011)
  • Author(s): 朝日啓太、福村啓介、梅原出、大貫惇睦
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院
  • Year and Date: 2011-11-10
• [Presentation] 木村憲明CeRhSi_3の交流法による高圧力下磁場中熱容量測定 (2011)
  • Author(s): 篠塚真仲、福村啓介、朝日啓太、久保裕樹、梅原出
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院
  • Year and Date: 2011-11-10
• [Presentation] LaPt_4Ge_<12>の超伝導の圧力効果 (2011)
  • Author(s): 近藤直也、梅原出、山中里奈
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院
  • Year and Date: 2011-11-10
• [Presentation] FeSe_<0. 5> Te_<0. 5>の圧力下物性測定 (2011)
  • Author(s): 小松誠治、山田美穂、三輪圭史、梅原出、水口圭一、高野義彦、Shixun Cao
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院
  • Year and Date: 2011-11-10
• [Presentation] PrSrMnO_3の高圧力下物性測定 (2011)
  • Author(s): 山田美穂、梅原出、溝口聡、ShixunCao
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院
  • Year and Date: 2011-11-10
• [Presentation] Gd_2Te_5の物性の圧力依存 (2011)
  • Author(s): 加田野隼矢、梅原出、綿貫竜太、鈴木和也
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院
  • Year and Date: 2011-11-10
• [Presentation] Heat Capacity measurement under pressure (2011)
  • Author(s): I. Umehara
  • Organizer: ICPMAT2011
  • Place of Presentation: 上海大学(中国)
  • Year and Date: 2011-10-12
• [Presentation] Gd_2Te_5の高圧下物性 (2011)
  • Author(s): 綿貫竜太,加田野隼矢,梅原出,鈴木和也
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-25
• [Presentation] CeTSi_3(T : Ir, Rh)の高圧磁場中熱容量測定の試み (2011)
  • Author(s): 福村啓介,朝日啓太,篠塚真仲,梅原出,木村憲彰,接待力生,大貫惇睦
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-25
• [Presentation] Phase Boundary and Quantum Criticality of CeTSi3(T : Rh and Ir) (2011)
  • Author(s): I. Umehara A. Yoshioka, Y. Kubo, N. Kimura, Y. Onuki
  • Organizer: SCES 2011
  • Place of Presentation: ケンブリッジ大学(英国
  • Year and Date: 2011-09-02
• [Presentation] Disappearance of Metal-Insulator Transition in Pr0. 5Ca0. 5MnO3 under Pressure (2011)
  • Author(s): I. Umehara, S. Mizoguchi, G. H. Hu, Y. Uwatoko, K. Matsubayashi, S. Yuan and S. X. Cao
  • Organizer: 26th International Conference on Low Temperature Physics
  • Place of Presentation: 北京国際センター(中国)
  • Year and Date: 2011-08-15
• [Presentation] Pressure Effect in Multiferroic Phase Transition of Perovskite Ferrite Crystals NdFeO_3 and ErFeO_3 (2011)
  • Author(s): G. Hu, I. Umehara, X. Shuang, S. Yuan, S. Cao
  • Organizer: 26th International Conference on Low Temperature Physics
  • Place of Presentation: 北京国際センター(中国)
  • Year and Date: 2011-08-12
• [Presentation] CeTSi_3(T : Ir, Rh)の高圧磁場中熱容量測定の試み (2010)
  • Author(s): 福村啓介,金丸勇気,久保裕樹,梅原出,上床美也,松林和幸,辺土正人,木村憲彰,接待力生,大貫惇睦
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-25
• [Presentation] FeSeの高圧下での物性測定 (2010)
  • Author(s): 山田美穂,三輪啓史,梅原出,上床美也,松林和幸,高野義彦,水口佳一, Shixun Cao
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-25
• [Presentation] FeSeTeの高圧力下物性測定 (2010)
  • Author(s): 三輪圭史,山田美穂,梅原出,上床美也,松林和幸,高野義彦,水口佳一, Shixun Cao
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-25
• [Presentation] High Pressure Phase Diagrams of Ternary Iron Arsenide Compounds AFe_2As_2(A=Ba, Sr, Eu) under Highly Hydrostatic Conditions (2009)
  • Author(s): K. Matsubayashi1, N. Katayama1, K. Ohgushi1, A. Yamada, K. Munakata, M. Hedo, I. Umehara, T. Matsumoto, and Y. Uwatoko
  • Organizer: the 9th International Conference on Materials and Mechanisms of Superconductivity
  • Place of Presentation: Tokyo
  • Year and Date: 20090907-12
• [Presentation] Specific Heat Measurement under Pressure with with Cubic Anvil Apparatus (2009)
  • Author(s): K. Matsubayashi, A. Yamada, K. Munakata, M. Hedo, I. Umehara, T. MatsumotoA, Y. Uwatoko Ac
  • Organizer: AIRAPT2009
  • Place of Presentation: Tokyo
  • Year and Date: 20090726-31
• [Presentation] 鉄系超伝導体の静水圧下における温度-圧力相図 (2009)
  • Author(s): 松林和幸、片山尚幸、大串研也、山田篤、宗像孝司、辺土正人、梅原出、松本武彦、上床美也
  • Organizer: 日本物理学会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-26
• [Presentation] RPt_4Ge_<12>(R=La, Pr, Nd)の超伝導の圧力効果
  • Author(s): 近藤直也,梅原出,山中里奈,上床美也,松林和幸
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
• [Book] Thermal and Electronic Properties of Rare Earth Compounds at High Pressure (2011)
  • Author(s): Y. Uwatoko, I. Umehara, M. Ohashi, T. Nakano and G. Oomi
  • Total Pages: 42