A Nonuniform State in a d-Wave Superconductor under Magnetic Field
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概要
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We consider a model d-wave superconductor in which the Y_<2±2> states have the highest transition temperature and the Y_<2±1> states have a slightly lower transition temperature and show that this model has a nonuniform phase just below the upper critical field in a wide temperature range. The nonuniform state is due to the mixing between the Y_<2, ±2> state and the Y_<2, ±1> state under magnetic field and has a spatially oscillating order parameter like the Fulde-Ferrell state but has a different character from the Fulde-Ferrell state because this nonuniform state is induced by the orbital magnetic effect. The relevance of the model to a heavy Fermion superconductor UPd_2Al_3 is mentioned.
- 社団法人日本物理学会の論文
- 1995-02-15
著者
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NAGAI Katsuhiko
Faculty of Integrated Arts and Sciences, Hiroshima University
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Matsuo S
Hiroshima Univ. Higashi‐hiroshima
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Shimahara H
Hiroshima Univ. Hiroshima
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Shimahara Hiroshi
Faculty Of Integrated Arts And Sciences Hiroshima University
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Shimahara Hiroshi
Department Of Quantum Matter Science Adsm
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Matsuo Shigemasa
Faculty of Integrated Arts and Sciences, Hiroshima University
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Matsuo Shigemasa
Faculty Of Integrated Arts And Science Hiroshima University
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Nagai Katsuhiko
Faculty Of Integrated Arts And Sciences Hiroshima University
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Nagai K
Graduate School Of Integrated Arts And Sciences Hiroshima University
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SHIMAHARA Hiroshi
Institute of Physics, University of Tsukuba
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NAGAI Katsuhiko
Department of Physics, Faculty of Literature and Science Yamaguchi University
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