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Derivation of the Curie-Weiss Law in Dynamical Mean-Field Theory

Krzysztof Byczuk·Dieter Vollhardt
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Abstract

We present an analytic derivation of the linear temperature dependence of the inverse static susceptibility $χ^{-1}(T,U)\sim T-T{_{c}}(U)$ near the transition from a paramagnetic to a ferromagnetic correlated metal within the dynamical mean-field theory (DMFT) for the Hubbard model. The equations for the critical temperature and interaction strength of the transition are also determined.

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Krzysztof Byczuk, Dieter Vollhardt. 2001-11-09. Derivation of the Curie-Weiss Law in Dynamical Mean-Field Theory. https://doi.org/10.1103/physrevb.65.134433

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