Correlation Induced Insulator to Metal Transitions
Condensed Matter
2009-10-22 v1
Abstract
We study a spinless two-band model at half-filling in the limit of infinite dimensions. The ground state of this model in the non-interacting limit is a band-insulator. We identify transitions to a metal and to a charge-Mott insulator, using a combination of analytical, Quantum Monte Carlo, and zero temperature recursion methods. The metallic phase is a non-Fermi liquid state with algebraic local correlation functions with universal exponents over a range of parameters.
Keywords
Cite
@article{arxiv.cond-mat/9312021,
title = {Correlation Induced Insulator to Metal Transitions},
author = {Qimiao Si and M. J. Rozenberg and G. Kotliar and A. E. Ruckenstein},
journal= {arXiv preprint arXiv:cond-mat/9312021},
year = {2009}
}
Comments
12 pages, REVTEX