Exact Solution of the Anderson Model and Its Thermodynamics II — Including Crystalline Field and Spin-Orbit Coupling
The thermodynamic properties of the highly correlated degenerate Anderson model are discussed on the basis of the Bethe-ansatz method, in the presence of the crystalline field and the spin-orbit coupling. The properties of the specific heat are investigated in detail, as a typical example, for the case of Ce impurities in a cubic crystalline field. The analytic expressions are given for the Fermi-liquid relation, the coefficient of the T-linear specific heat and the effective Kondo temperature. The curve of the temperature-dependent specific heat is shown to become asymmetric and have a shoulder structure when the splitting of the crystalline field is increased.
KeywordsAnderson Model Charge Fluctuation Kondo Temperature Crystalline Field Specific Heat Curve
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