Pressure-induced phase transition and quantum critical phanomena in cerium metal

• Project/Area Number: 19740211
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: Kanazawa University
• Principal Investigator: OHASHI Masashi Kanazawa University, 環境デザイン学系, 准教授 (10336000)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,660,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥360,000); Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2007: ¥2,100,000 (Direct Cost: ¥2,100,000)
• Keywords: セリウム / 重い電子系 / 超伝導 / 圧力 / 量子相転移

Research Abstract

本研究ではCe単体金属を研究対象とした。加圧にともなう磁気秩序の消失、圧力誘起構造転移、圧力誘起超伝導の起源といった問題を明らかにするために、精密な高圧下精密物性測定システムの開発および様々な臨界現象の観測を行った。装置の組み立て及び種々の予備測定の後、10GPaまでの圧力領域にて超伝導転移温度Tcおよび臨界磁場HC_2の測定をおこなった。コヒーレンス長の圧力依存性などについて、通常金属との比較や4f電子が超伝導に及ぼす寄与などの分析をおこなった。

Research Products

• [Journal Article] Development of pressure cell for specific heat measurement at low temperature and high magnetic field (2009)
  • Author(s): T. Kawae, K. Yaita, Y. Yoshida, Y. Inagaki, M. Ohashi, G. Oomi, K. Matsubayashi, T. Matsumoto, Y. Uwatoko
  • Journal Title: Review of Scientific Instruments 80
  • Peer Reviewed
• [Journal Article] Hall effect in CeAl2 under high pressure (2009)
  • Author(s): Hidenori Miyagawa, Masashi Ohashi, Tomohito Nakano, Gendo Oomi, Isamu Satoh and Takemi Komatsubara
  • Journal Title: Journal of physics: Conference Series 150
  • Peer Reviewed
• [Journal Article] Hall effect in CeAI_2 under high pressure (2009)
  • Author(s): H. Miyagawa, M. Ohashi, ほか4名
  • Journal Title: Journal of physics : Conference Series 150
  • Peer Reviewed
• [Journal Article] A technique for precise electrical-transport measurements under pressure above 10 GPa (2008)
  • Author(s): Masashi Ohashi
  • Journal Title: Journal of physics: Conference Series 121
  • Peer Reviewed
• [Journal Article] Electronic states of single crystal CeAl2 near the pressure-induced quantum critical point (2008)
  • Author(s): H. Miyagawa, G. Oomi, M. Ohashi, I. Satoh, T. Komatsubara, M. Hedo, Y. Uwatoko
  • Journal Title: Phys. Rev. B 78
  • Peer Reviewed
• [Journal Article] A technique for precise electrical-transport measurements under pressure above 10 Gpa (2008)
  • Author(s): Masashi Ohashi
  • Journal Title: Journal of physics : Conference Series 121
  • Peer Reviewed
• [Journal Article] Electronic states of single crystal CeAl_2 near the pressure-induced quantum critical point (2008)
  • Author(s): H. Miyagawa, G. Oomi, M. Ohashi, ほか4名
  • Journal Title: Physical Review B 78
  • Peer Reviewed
• [Journal Article] Effects of pressure on electrical resistivity and magnetoresistance of β-Ce (2007)
  • Author(s): Yukio Sakigawa, Masashi Ohashi, Gendo Oomi
  • Journal Title: Journal of the physical society of Japan 76 Suppl. A Pages: 66-67
  • Peer Reviewed
• [Journal Article] Synthesis of heavy fermion Ce compound under high pressure (2007)
  • Author(s): Gendo Oomi, Hidenori Miyagawa, Masashi Ohashi, Tatsuya Kawae, Tomoaki Kubo, Takumi Kato
  • Journal Title: Journal of the physical society of Japan 76 Suppl. A Pages: 72-73
  • Peer Reviewed
• [Journal Article] Low-energy Magnetic Excitations in CeAl2 under Pressure Investigated by investigated by 27Al-NQR Magnetic Resonance Measurements (2007)
  • Author(s): S. Tomisawa, S. Wada, M. Ohashi and G. Oomi
  • Journal Title: Journal of the physical society of Japan 76 Suppl. A Pages: 164-165
  • Peer Reviewed
• [Journal Article] A new apparatus for precise electrical-transport measurements under quasi-hydrostatic pressure up to 15 GPa (2007)
  • Author(s): Masashi Ohashi, Gendo Oomi
  • Journal Title: ournal of the physical society of Japan 76 Suppl. A Pages: 226-227
  • Peer Reviewed
• [Journal Article] AC magnetic susceptibility studies of single crystalline CeNiGe2 under high pressure (2007)
  • Author(s): Masashi Ohashi, Gendo Oomi, Isamu Satoh
  • Journal Title: Journal of the physical society of Japan 76 Pages: 1147121-3
  • Peer Reviewed
• [Journal Article] A new apparatus for precise electrical-transport measurements under quasi-hydrostatic pressure up to 15 GPa (2007)
  • Author(s): Masashi Ohashi, Gendo Oomi
  • Journal Title: Journal of the physical society of Japan Suppl. A 76 Pages: 226-227
  • Peer Reviewed
• [Journal Article] Magnetic susceptibility studies of single crystalline CeNiGe_2 under high pressure (2007)
  • Author(s): Masashi Ohashi, Gendo Oomi, Isamu Satoh
  • Journal Title: Journal of the physical society of Japan 76
  • Peer Reviewed
• [Journal Article] Effects of pressure on electrical resistivity and magnetoresistance of β-Ce (2007)
  • Author(s): Yukio Sakigawa, Masashi Ohashi, Gendo Oomi
  • Journal Title: Journal of the physical society of Japan Suppl. A 76 Pages: 66-67
  • Peer Reviewed
• [Presentation] AgPdCu合金を用いた圧力セルの開発II (2009)
  • Author(s): 八板克仁, 諸冨大樹, 和田統, 吉田靖雄, 稲垣祐次, 河江達也, 大橋政司, 巨海玄道, 松林和幸, 上床美也
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
• [Presentation] CePtSi2の圧力効果II (2009)
  • Author(s): 中野智仁, 大橋政司, 松林和幸, 上床美也, 巨海玄道
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
• [Presentation] 高硬度合金Ag-Pd-Cuの超低温実験への応用 (2009)
  • Author(s): 河江達也, 八板克仁, 稲垣祐次, 大橋政司, 巨海玄道, 松林和幸, 上床美也, 松本武彦, 柄木良友
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
• [Presentation] HoNi2B2C における磁性と超伝導の競合と圧力効果 (2009)
  • Author(s): 大橋政司
  • Organizer: 文部科学省科学研究費補助金新学術領域研究「重い電子の秩序化」第1回研究会
  • Place of Presentation: 東大物性研
• [Presentation] CePtSi2の圧力下輸送特性 (2008)
  • Author(s): 中野智仁, 大橋政司,松林和幸, 上床美也, 巨海玄道
  • Organizer: 日本物理学会九州支部例会
  • Place of Presentation: 福岡工業大学
  • Year and Date: 2008-12-06
• [Presentation] AgPdCu合金を用いた圧力セルの開発 (2008)
  • Author(s): 八板克仁, 和田統, 吉田靖雄, 稲垣祐次,河江達也, 大橋政司, 巨海玄道, 松林和幸, 上床美也, 松本武彦
  • Organizer: 日本物理学会九州支部例会
  • Place of Presentation: 福岡工業大学
  • Year and Date: 2008-12-06
• [Presentation] AgPdCu合金を用いた圧力セルの開発 (2008)
  • Author(s): 八板克仁, ほか9名
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-21
• [Presentation] 金沢大学における高圧技術 (2008)
  • Author(s): 大橋政司
  • Organizer: 超域研究機構高圧研究会
  • Place of Presentation: 新潟大学
  • Year and Date: 2008-01-11
• [Presentation] CePtSi2の圧力効果 (2008)
  • Author(s): 中野智仁, 大橋政司, 松林和幸, 上床美也, 巨海玄道
  • Organizer: 日本物理学会秋期大会
  • Place of Presentation: 岩手大学
• [Presentation] AgPdCu合金を用いた圧力セルの開発 (2008)
  • Author(s): 八板克仁, 諸冨大樹, 和田統, 吉田靖雄, 稲垣祐次, 河江達也, 大橋政司, 巨海玄道, 松林和幸, 上床美也
  • Organizer: 日本物理学会秋期大会
  • Place of Presentation: 岩手大学
• [Presentation] Hall effect in CeAl2 under high pressure (2008)
  • Author(s): Hidenori Miyagawa, Masashi Ohashi, Tomohito Nakano, Gendo Oomi, Isamu Satoh, Takemi Komatsubara
  • Organizer: 25th international conference on Low Temperature Physics (LT25)
  • Place of Presentation: Amsterdam, Nl
• [Presentation] 極低温強磁場実験用圧力セルの開発II (2008)
  • Author(s): 八板克仁, 和田統, 吉田靖雄, 稲垣祐次, 河江達也, 大橋政司, 巨海玄道
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学
• [Presentation] 極低温強磁場実験用圧力セルの開発 (2007)
  • Author(s): 八板克仁, 和田統, 吉田靖雄, 稲垣祐次,河江達也, 大橋政司, 巨海玄道
  • Organizer: 第113回日本物理学会九州支部例会
  • Place of Presentation: 大分大学
  • Year and Date: 2007-12-01
• [Presentation] A technique for precise electrical-transport measurements at low temperatures under pressure above 10 GPa (2007)
  • Author(s): 大橋政司
  • Organizer: Joint 21st AIRAPT and 45th EHPRG international Conference on High Pressure and Technology
  • Place of Presentation: カターニャ、イタリア
  • Year and Date: 2007-09-20
• [Presentation] Ce化合物の高圧合成 (2007)
  • Author(s): 酒井久美子・宮川英典・大橋政司・浅野貴行・巨海玄道・久保友明・加藤工・河江達也
  • Organizer: 第48回高圧討論会
  • Place of Presentation: 倉吉パークスクエア
• [Presentation] 強磁性ErAl2 におけるCe置換効果II (2007)
  • Author(s): 宮川英典, 大橋政司, 巨海玄道, 佐藤伊佐務, 小松原武美
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
• [Presentation] 高圧下におけるCeAu2Si2の磁性と伝導 (2007)
  • Author(s): 大村美央, 巨海玄道, 大橋政司, 佐藤伊佐務, 青木晴善, 小松原武美
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
• [Presentation] 高圧下におけるα-Ceの電気抵抗及び磁気抵抗 (2007)
  • Author(s): 酒井久美子,宮川英典,大村美央,巨海玄道, 大橋政司
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
• [Presentation] 極低温強磁場実験用圧力セルの開発 (2007)
  • Author(s): 八板克仁, 和田統, 吉田靖雄, 稲垣祐次, 河江達也,大橋政司,巨海玄道
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
• [Presentation] f電子系化合物の高圧物性 (2007)
  • Author(s): 大橋政司
  • Organizer: 第2回連携物性研究会
  • Place of Presentation: 金沢大学
• [Presentation] A technique for precise electrical- transport measurements at low temperatures under pressure above 10 GPa (2007)
  • Author(s): Masashi Ohashi, Gendo Oomi
  • Organizer: Joint 21st AIRAPT and 45th EHPRG international Conference on High Pressure and Technology
  • Place of Presentation: Catania, Italy
• [Presentation] Thermal expansion measurement using strain gauge under high pressure - application to rare earth compounds (2007)
  • Author(s): Hidenori Miyagawa, Takeshi Sakai, Masashi Ohashi, Gendo Oomi
  • Organizer: The Asian Thermophysical Properties Conference
  • Place of Presentation: Fukuoka, Japan
• [Presentation] Pressureinduced electronic instability near the border of magnetic ordering (2007)
  • Author(s): Gendo Oomi, Mio Ohmura, Kumiko Sakai, Masashi Ohashi, B.K.Cho
  • Organizer: APCTP and MPI-PKS Summer School & Workshop on Strongly Correlated Electron System
  • Place of Presentation: Pohang, Korea
• [Presentation] CeAu2Si2の反強磁性に及ぼす圧力・磁場効果 (2007)
  • Author(s): 大村美央・大橋政司・巨海玄道・佐藤伊佐務・青木晴善・小松原武美
  • Organizer: 第24回希土類討論会
  • Place of Presentation: 九州大学医学部百年記念講堂
• [Presentation] HoNi2B2Cの超伝導特性に及ぼす圧力効果とYによる希釈効果 (2007)
  • Author(s): 大橋政司,崎川幸夫,巨海玄道,B.K.Cho
  • Organizer: 第24回希土類討論会
  • Place of Presentation: 九州大学医学部百年記念講堂
• [Presentation] CeIn3の高圧合成とその基礎物性 (2007)
  • Author(s): 宮川英典,大橋政司,巨海玄道,浅野貴行,久保友明,加藤工,河江達也,M. Mihalik,V.Sechovsky
  • Organizer: 第24回希土類討論会
  • Place of Presentation: 九州大学医学部百年記念講堂
• [Presentation] 高圧下におけるα-Ce及びγ-Ceの磁気抵抗効果 (2007)
  • Author(s): 酒井久美子・大橋政司・巨海玄道
  • Organizer: 第24回希土類討論会
  • Place of Presentation: 九州大学医学部百年記念講堂
• [Book] Novel Pressure-induced Phenomena in Condensed Matter Systems(Journal of the physical society of Japan 76 suppl. A, edited by T. Kagayama, M. Ohashi, Y. Uwatoko) (2007)
• [Book] Suppliment A to the Journal of the Physical Society of Japan, Vol.76 (2007)
  • Author(s): T. Kagayama, M. Ohashi, Y. Uwatoko
  • Total Pages: 231
  • Publisher: 日本物理学会