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Prog. Theor. Phys. Supplement No.108 (1992) pp. 73-88

[ Full Text PDF : FREE ACCESS (1402K) ]

Excitation Spectra of the Impurity Anderson Model Calculated by the Numerical Renormalization Group Method

Osamu Sakai, Yukihiro Shimizu and Tadao Kasuya

Department of Physics, Tohoku University, Sendai 980

(Received October 21, 1991)

Abstract:

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.


URL : http://ptp.ipap.jp/link?PTPS/108/73/
DOI : 10.1143/PTPS.108.73

[ Full Text PDF : FREE ACCESS (1402K) ] Citation:

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  17. Progress of Theoretical Physics Supplement No.108 (1992) pp. 89-116 :
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