Theory on Superconductivity of CeIn_3 in Heavy Fermion System (Condensed Matter: Electric Structure, Electrical, Magnetic and Optical Properties)
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概要
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On the basis of a three-dimensional Hubbard model, the superconducting mechanism of CeIn_3 under high pressure is investigated by the third-order perturbation theory with respect to the on-site Coulomb interaction U. Here we propose the J-wave pairing state induced by antiferromagnetic spin fluctuations. The estimated superconducting transition temperature is lower by one order than that in the two-dimensional system for the same value of U/W (W=bandwidth). This result is consistent with the difference between CeIn_3 and CeRhIn_5.
- 社団法人日本物理学会の論文
- 2003-10-15
著者
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YAMADA Kosaku
Department of Physics, Kyoto University
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Yamada K
Department Of Physics Tohoku University:(present)institute For Chemical Research Kyoto University
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Fukazawa Hideto
Department Of Physics Kyoto University : (present Address)graduate School Of Science And Technology
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Yamada Kosaku
Department Of Mechanical Engineering Faculty Of Engineering Kagoshima University
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Fukazawa H
Department Of Physics Kyoto University : (present Address)graduate School Of Science And Technology
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FUKAZAWA Hirono
Faculty of Science, Himeji Institute of Technology
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Fukazawa Hirono
Faculty Of Science Himeji Institute Of Technology
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