Finite-Temperature Mott Transition in the Two-Dimensional Hubbard Model
强关联电子
2009-11-10 v2
摘要
Mott transitions are studied in the two-dimensional Hubbard model by a non-perturbative theory of correlator projection that systematically includes spatial correlations into the dynamical mean-field approximation. Introducing a nonzero second-neighbor transfer, a first-order Mott transition appears at finite temperatures and ends at a critical point or curve.
引用
@article{arxiv.cond-mat/0304580,
title = {Finite-Temperature Mott Transition in the Two-Dimensional Hubbard Model},
author = {Shigeki Onoda and Masatoshi Imada},
journal= {arXiv preprint arXiv:cond-mat/0304580},
year = {2009}
}
备注
2 pages, to appear in J. Mag. Mag. Mat. as proceedings of the International Conference on Magnetism 2003