Excitation Spectra of the Impurity Anderson Model Calculated by the Numerical Renormalization Group Method
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概要
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A method to calculate the excitation spectra of the impurity Anderson model based on the numerical renormalization group technique is reviewed. The single particle and the magnetic excitation spectra are calculated for the cases of various magnitudes of the f-f Coulomb interaction to compare them with experimentally observed broad PES-BIS spectra in U-compounds. Excitation spectra in the Kondo limit are also examined in detail. The Kondo effect due to the magnetic ions with complex multiplet structures, such as the Sm- and the Tm-like ions, is studied. The excitation spectra of the two impurity Anderson model are calculated and roles of the parity splitting are discussed.
- 理論物理学刊行会の論文
- 1992-06-30
著者
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SAKAI Osamu
Department of Physics, Tokyo Metropolitan University
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糟谷 忠雄
東北大学理学部
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KASUYA Tadao
Department of Physics,Faculty of Science,Tohoku University
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清水 幸弘
東北大工
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Kasuya Tadao
Department Of Physics Faculty Of Science Tohoku University
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Shimizu Yukihiro
Department of Physics, Tohoku University
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Shimizu Yukihiro
Department Of Applied Physics Tohoku University
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Shimizu Y
Department Of Physics Nagoya University
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Sakai Osamu
Department Of Cardiovascular Surgery Kyoto Prefectural University Of Medicine
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