Fermi-Surface Reconstruction in the Periodic Anderson Model
Strongly Correlated Electrons
2009-02-12 v1
Abstract
We study ground state properties of periodic Anderson model in a two-dimensional square lattice with variational Monte Carlo method. It is shown that there are two different types of quantum phase transition: a conventional antiferromagnetic transition and a Fermi-surface reconstruction which accompanies a change of topology of the Fermi surface. The former is induced by a simple back-folding of the Fermi surface while the latter is induced by localization of electrons. The mechanism of these transitions and the relation to the recent experiments on Fermi surface are discussed in detail.
Cite
@article{arxiv.0809.3282,
title = {Fermi-Surface Reconstruction in the Periodic Anderson Model},
author = {Hiroshi Watanabe and Masao Ogata},
journal= {arXiv preprint arXiv:0809.3282},
year = {2009}
}
Comments
8 pages, 7 figures, submitted to Journal of the Physical Society of Japan