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
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KITAOKA Yoshio
Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka Universit
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Amaya Kiichi
Department of Material Physics, Faculty of Engineering Science, Osaka University
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Shimizu Kazuaki
Department Of Physics Faculty Of Science Okayama University
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Amaya Kiichi
Department Of Physical Science Graduate School Of Engineering Science Osaka University : Crest Japan
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Amaya K
Department Of Physical Science Grasuate School Of Engineering Science Osaka University
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Shimizu K
Osaka Univ. Osaka
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ONUKI Yoshichika
Department of Physics, Graduate School of Science, Osaka University
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Kawasaki S
Kyokugen Research Center For Materials Science At Extreme Conditions Osaka University
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Takeshita Nao
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Kitaoka Yoshio
Department Of Physical Science Graduate School Of Engineering Science Osaka University : Crest Japan
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Kitaoka Yoshio
Department Of Material Physics Faculty Of Engineering Science Osaka University
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SHIMIZU Katsuya
Department of Materials Science and Engineering, Graduate School of Engineering Science, Osaka Unive
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Amaya Kiichi
Department Of Material Physics Faculty Of Engineering Scinece Osaka University
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Onuki Yoshichika
Department Of Physics Graduate School Of Science Osaka University
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Shimizu K
Graduate School Of Engineering Science Osaka University
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Tatsuo C.KOBAYASHI
Research Center for Materials Science at Extreme Conditions,Osaka University
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MIYAZU Tadashi
Department of Physical Science,Graduate School of Engineering Science,Osaka University
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Onuki Yoshichika
Department Of Physice Osaka University
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Amaya Kiichi
Department Of Material Physics Faculty Of Engineering Science
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Miyazu Tadashi
Department Of Physical Science Graduate School Of Engineering Science Osaka University
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Takeshita N
Correlated Electron Research Center (cerc) National Institute Of Advanced Industrial Science And Tec
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Nakanishi T
Graduate School Of Science Tokyo Metropolitan University
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Shimizu Katsuya
Department Of Material Physics Faculty Of Engineering Science Osaka University:crest Japan Science A
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Tatsuo C.kobayashi
Research Center For Materials Science At Extreme Conditions Osaka University : Crest Japan Science A
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Kobayashi Tatsuo
Research Center For Materials Science At Extreme Conditions Osaka University
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Takeshita Nao
Correlated Electron Research Center (CERC), National Institute of Advanced Industrial Science and Technology (AIST)
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Amaya Kiichi
Department of Physical Science, Grasuate School of Engineering Science, Osaka University
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