Ising transition in a one-dimensional quarter-filled electron system with dimerization
Strongly Correlated Electrons
2009-11-07 v1
Abstract
We examine critical properties of the quarter-filled one-dimensional Hubbard model with dimerization and with the onsite and nearest-neighbor Coulomb repulsion U and V. By utilizing the bosonization method, it is shown that the system exhibits an Ising quantum phase transition from the Mott insulating state to the charge-ordered insulating state. It is also shown that the dielectric permittivity exhibits a strong enhancement as decreasing temperature with power-law dependence at the Ising critical point.
Cite
@article{arxiv.cond-mat/0110315,
title = {Ising transition in a one-dimensional quarter-filled electron system with dimerization},
author = {M. Tsuchiizu and E. Orignac},
journal= {arXiv preprint arXiv:cond-mat/0110315},
year = {2009}
}
Comments
8 pages, 1 figure, uses elsart.cls, Proc. Int. Symp. ISSP-Kashiwa 2001, submitted to J. Phys. Chem. Solids