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Spinless Two-Band Model in Infinite Dimensions

Luis Craco
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Abstract

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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Luis Craco. 1999-03-26. Spinless Two-Band Model in Infinite Dimensions. https://doi.org/10.1103/physrevb.59.14837

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