Numerical Renormalization Group Study of Magnetic Impurities in Superconductors. II. Dynamical Excitation Spectra and Spatial Variation of the Order Parameter
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概要
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The Kondo problem in superconductors is studied by extending Wilson's numerical renormalization group method. As a continuation to a previous paper (J. Phys. Soc. Jpn. 61 (1992) 3239), various problems related to the localized excited state produced by a magnetic impurity are examined in detail. In particular, the binding energy of the localized excited state, its spectral weight, one-electron and magnetic excitation spectra and the spatial variation of the order parameter are studied over the whole regime of the magnitude of T_K/⊿(T_K : Kondo temperature, ⊿ : superconducting energy gap).
- 社団法人日本物理学会の論文
- 1993-09-15
著者
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SAKAI Osamu
Department of Physics, Tokyo Metropolitan University
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SHIBA Hiroyuki
Department of Physics, Kobe University
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清水 幸弘
東北大工
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Shiba Hiroyuki
Department Of Physics Tokyo Institute Of Technology
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Shimizu Yukihiro
Department of Physics, Tohoku University
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Satori Koji
Department of Physics, Tokyo Institute of Technology
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Satori Koji
Department Of Physics Tokyo Institute Of Technology
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Shimizu Yukihiro
Department Of Applied Physics Tohoku University
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Sato Hideyuki
Graduate School Of Science Tokyo Metropolitan University
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Sakai Osamu
Department Of Cardiovascular Surgery Kyoto Prefectural University Of Medicine
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Shiba Hiroyuki
Department Of Computer Science Gunma University Faculty Of Engineering
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