Hall constant of strongly correlated electrons on a ladder
Strongly Correlated Electrons
2007-05-23 v1
Abstract
The Hall constant R_H in a tight-binding model of correlated electrons on a ladder at T=0 is expressed in terms of derivatives of the ground state energy with respect to external magnetic and electric fields. This novel method is used for the analysis of the t-J model on finite size ladders. It is found that for a single hole R_H is hole-like and close to the semiclassical value, while for two holes it can vary with ladder geometry. In odd-leg ladders, R_H behaves quite regularly changing sign as a function of doping, the variation being quantitatively close to experimental results in cuprates.
Cite
@article{arxiv.cond-mat/9909159,
title = {Hall constant of strongly correlated electrons on a ladder},
author = {P. Prelovsek and M. Long and T. Markez and X. Zotos},
journal= {arXiv preprint arXiv:cond-mat/9909159},
year = {2007}
}
Comments
RevTeX, 5 pages, 3 figures, to appear in Phys. Rev. Lett