Metal-Insulator Transition in a Generalized Hubbard Model with Correlated Hopping at Half-Filling
Strongly Correlated Electrons
2015-06-25 v1
Abstract
In the present paper metal-insulator transition is studied in a generalized Hubbard model with correlated hopping at half-filling and zero temperature. Single-particle Green function and energy spectrum of electron system are calculated. The expressions for energy gap width and the concentration of polar states (holes or doublons) are obtained. The conditions for metallic and insulating states are found.
Cite
@article{arxiv.cond-mat/9811213,
title = {Metal-Insulator Transition in a Generalized Hubbard Model with Correlated Hopping at Half-Filling},
author = {Leonid Didukh and Vasyl Hankevych},
journal= {arXiv preprint arXiv:cond-mat/9811213},
year = {2015}
}
Comments
11 pages, 2 eps figures, Latex 2.09, submitted to Phys. Stat. Sol. (B)