晶体极化模型的改进形式
强关联电子
2007-05-23 v1
摘要
A model for description of materials with narrow energy bands is proposed. It is shown that in narrow-band materials electron-hole symmetry is absent in contrast to the Hubbard model. In this paper metal-insulator transition is studied. The obtained results are compared with experimental data for narrow-band materials. Some specific narrow-band effects are discussed.
引用
@article{arxiv.cond-mat/9812364,
title = {A modified form of the polar model of crystals},
author = {Leonid Didukh},
journal= {arXiv preprint arXiv:cond-mat/9812364},
year = {2007}
}
备注
17 pages, 4 eps figures, Latex 2.09