Self-Consistent Perturbation Theory for Thermodynamics of Magnetic Impurity Systems

J. Otsuki; H. Kusunose; Y. Kuramoto

doi:10.1143/jpsjs.75s.256

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Self-Consistent Perturbation Theory for Thermodynamics of Magnetic Impurity Systems

J. Otsuki·H. Kusunose·Y. Kuramoto

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Abstract

Integral equations for thermodynamic quantities are derived in the framework of the non-crossing approximation (NCA). Entropy and specific heat of 4f contribution are calculated without numerical differentiations of thermodynamic potential. The formulation is applied to systems such as PrFe4P12 with singlet-triplet crystalline electric field (CEF) levels.

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J. Otsuki, H. Kusunose, Y. Kuramoto. 2005-10-17. Self-Consistent Perturbation Theory for Thermodynamics of Magnetic Impurity Systems. https://doi.org/10.1143/jpsjs.75s.256

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