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Prog. Theor. Phys. Vol. 62 No. 2 (1979) pp. 354-362

Perturbation Expansion for the Asymmetric Anderson Hamiltonian

Kosaku Yamada

Institute for Solid State Physics, University of Tokyo, Tokyo 106
and
College of Engineering, Shizuoka University, Hamamatsu 432

(Received March 5, 1979)

Abstract:

The single orbital Anderson Hamiltonian with d-orbital fixed to the Fermi level (ε_d = 0) is discussed by a perturbation method with respect to electron correlation U. In this model the Coulomb repulsion U reduces the occupied d-electron number and, on the other hand, enhances the d-electron effective mass and normalized susceptibility (\tildeχ_s). As the result of competition of these effects, the specific heat at low temperature decreases and the magnetic susceptibility increases with U for U < Δ and then decreases for large U.

URL : http://ptp.ipap.jp/link?PTP/62/354/
DOI : 10.1143/PTP.62.354

[ Full Text PDF : FREE ACCESS (548K) ] Citation: Plain Text BiBTeX EndNote(RIS) RSS

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Citing Article(s) :

1. Progress of Theoretical Physics Vol. 62 No. 3 (1979) pp. 595-607 :

   Ground State of the Asymmetric Anderson Model in the T-Matrix Approximation

   Hidetoshi Fukuyama and Akio Sakurai

2. Progress of Theoretical Physics Vol. 62 No. 4 (1979) pp. 901-914 :

   Interaction between Localized Moments in Metals

   Kosaku Yamada

3. Progress of Theoretical Physics Vol. 62 No. 6 (1979) pp. 1441-1457 :

   Ground State of the Asymmetric Anderson Model

   Satoru Inagaki

4. Progress of Theoretical Physics Supplement No.69 (1980) pp. 232-241 :

   Ground State of the Asymmetric Anderson Model

   Satoru Inagaki

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