Perturbation Expansion for the Asymmetric Anderson Hamiltonian
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概要
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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 (X_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.
- 理論物理学刊行会の論文
- 1979-08-25
著者
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Yamada Kosaku
Institure For Solid State Physics University Of Tokyo
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Yamada Kosaku
Institute For Solid State Physics University:college Of Engineering Shizuoka University
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YAMADA Kosaku
Institute for Solid State Physics, University:College of Engineering, Shizuoka University
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