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cond-mat.str-el2003★ 7 cited
Two-particle propagator and magnetic susceptibility in the Hubbard model- An improved treatment
A. Uldry, R. J. Elliott
We treat the two-particle Green's function in the Hubbard model using the recently developed tau-CPA, a hybrid treatment that applies the coherent-potential approximation (CPA) up…
cond-mat.str-el2003
Magnetism in the Hubbard model-An improved treatment
A. Uldry, R. J. Elliott
We propose a new treatment of the Hubbard model that is based both on the coherent-potential approximation (CPA) and the virtual-crystal approximation (VCA). It is well known that…