Spinless Two-Band Model in Infinite Dimensions

Details Spinless Two-Band Model in Infinite Dimensions Spinless Two-Band Model in Infinite Dimensions

1999-03-26

arxiv.org/abs/cond-mat/9903401v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures, to appear in PRB-Breif Report

Scientific paper

10.1103/PhysRevB.59.14837

A spinless two-band model is studied in infinite dimension limit. Starting from the atomic limit, the formal exact solution of the model is obtained by means a perturbative treatment of the hopping and hybridisation terms. The model is solved in closed form in high dimensions assuming no local spin fluctuations. The non-Fermi liquid properties appearing in the metallic phase are analysed through the behaviour of the density of states and the self-energy near the Fermi level.

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