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Derivation of the Curie-Weiss law in dynamical mean-field theory

Krzysztof Byczuk, Dieter Vollhardt
2002 Physical Review B (Condensed Matter)  

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2001 pre-print arXiv:cond-mat/0111154v1 fatcat:zcsniqoiizgc7ghx6ijnggc34m
We present an analytic derivation of the linear temperature dependence of the inverse static susceptibility χ ^-1(T,U)∼ 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.
doi:10.1103/physrevb.65.134433 fatcat:2oioi5kxezccjl75xx64rf2m3a
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Krzysztof Byczuk, Dieter Vollhardt. "Derivation of the Curie-Weiss law in dynamical mean-field theory." Physical Review B (Condensed Matter) 65.13 (2002)