Correlation induced insulator to metal transitions
OA Version
Citation
Q.M. SI, M.J. ROZENBERG, G. KOTLIAR, A.E. RUCKENSTEIN. 1994. "CORRELATION INDUCED INSULATOR TO METAL TRANSITIONS." PHYSICAL REVIEW LETTERS, Volume 72, Issue 17, pp. 2761 - 2764 (4). https://doi.org/10.1103/PhysRevLett.72.2761
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 noninteracting 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.