Mixed-State Thermodynamics of Superconductors with Moderately Large Paramagnetic Effects(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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Effects of Pauli paramagnetism on thermodynamic quantities in a vortex state, such as the specific heat C and magnetization M, are studied using the quasiclassical Eilenberger formalism. We demonstrate that with an increase of paramagnetic depairing effect, the sigh of the curvature of the field dependence of C changes from negative to positive, and that the Maki parameter κ_2 becomes an increasing function of temperature. Our results provide a natural explanation for the unusual field dependence of C seen in CeCoIn_5 in terms of the paramagnetic effect.
- 社団法人日本物理学会の論文
- 2005-08-15
著者
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ICHIOKA Masanori
Department of Physics, Okayama University
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MACHIDA Kazushige
Department of Physics, Okayama University
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Machida Kazushige
Department Of Physics Kyoto University
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ADACHI Hiroto
Department of Physics, Okayama University
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Adachi Hiroto
Department Of Physics Okayama University:(present Office)theoretische Physik Eth-honggerberg
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Adachi Hiroto
Department Of Physics Kyoto University
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Ichioka Masanori
Department Of Physics Kyoto University
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