Enhancement of Superconducting Transition Temperature in CeCu_2Ge_2 under High Pressures

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概要

• 論文の詳細を見る

• Enhancetnent of strpercondtrcting transition tenaperature T. is confirmed at arotrnd 16 GPa inthe presstrre-induced supercondtrctor CeCtr3Gez. The superconducting H. - T. phase diagranusat the IOXV-V'. and high-'f. pressure regions indicates that the heavy qtrasi particles form thesinglet Cooper pairs. At both low-']. and high-]. presstrre regions, Fermi liquid behavior ofp N AT' is observed only at low temperatures below 1 K in the normal state induced by theexternal field above H.7. At 21 GPa where the strpercondtrctivity disappears down to 50 mK,the temperattrre region following p x AT' increases drastically Ulp to 40 K and the coefficient Adecreases rapidly. These restrlts indicate that tlae strongly correlated electrons are responsibleessentially for the appearance of strperconductivity in this systena.

• 社団法人日本物理学会の論文
• 1998-03-15

著者

• KITAOKA Yoshio

  Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka Universit

• Amaya Kiichi

  Department of Material Physics, Faculty of Engineering Science, Osaka University

• Shimizu Kazuaki

  Department Of Physics Faculty Of Science Okayama University

• Amaya Kiichi

  Department Of Physical Science Graduate School Of Engineering Science Osaka University : Crest Japan

• Amaya K

  Department Of Physical Science Grasuate School Of Engineering Science Osaka University

• Shimizu K

  Osaka Univ. Osaka

• ONUKI Yoshichika

  Department of Physics, Graduate School of Science, Osaka University

• Kawasaki S

  Kyokugen Research Center For Materials Science At Extreme Conditions Osaka University

• Takeshita Nao

  Department Of Material Physics Faculty Of Engineering Science Osaka University

• Kitaoka Yoshio

  Department Of Physical Science Graduate School Of Engineering Science Osaka University : Crest Japan

• Kitaoka Yoshio

  Department Of Material Physics Faculty Of Engineering Science Osaka University

• SHIMIZU Katsuya

  Department of Materials Science and Engineering, Graduate School of Engineering Science, Osaka Unive

• Amaya Kiichi

  Department Of Material Physics Faculty Of Engineering Scinece Osaka University

• Onuki Yoshichika

  Department Of Physics Graduate School Of Science Osaka University

• Shimizu K

  Graduate School Of Engineering Science Osaka University

• Tatsuo C.KOBAYASHI

  Research Center for Materials Science at Extreme Conditions,Osaka University

• MIYAZU Tadashi

  Department of Physical Science,Graduate School of Engineering Science,Osaka University

• Onuki Yoshichika

  Department Of Physice Osaka University

• Amaya Kiichi

  Department Of Material Physics Faculty Of Engineering Science

• Miyazu Tadashi

  Department Of Physical Science Graduate School Of Engineering Science Osaka University

• Takeshita N

  Correlated Electron Research Center (cerc) National Institute Of Advanced Industrial Science And Tec

• Nakanishi T

  Graduate School Of Science Tokyo Metropolitan University

• Shimizu Katsuya

  Department Of Material Physics Faculty Of Engineering Science Osaka University:crest Japan Science A

• Tatsuo C.kobayashi

  Research Center For Materials Science At Extreme Conditions Osaka University : Crest Japan Science A

• Kobayashi Tatsuo

  Research Center For Materials Science At Extreme Conditions Osaka University

• Takeshita Nao

  Correlated Electron Research Center (CERC), National Institute of Advanced Industrial Science and Technology (AIST)

• Amaya Kiichi

  Department of Physical Science, Grasuate School of Engineering Science, Osaka University

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