Spinless Two-Band Model in Infinite Dimensions

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.

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

References in corpus (1)

• Ferromagnetism in the Hubbard model with orbital degeneracy in infinite dimensions

Cited by in corpus (3)

• Electronic phase transitions in the half-filled ionic Hubbard model
• Insulator-to-metal crossover induced by local spin fluctuations in strongly correlated systems
• Towards A Possible Charge-Kondo effect in Optical Lattices