Temperature Dependence of Hall Response in Doped Antiferromagnets
Strongly Correlated Electrons
2009-11-07 v1
Abstract
Using finite-temperature Lanczos method the frequency-dependent Hall response is calculated numerically for the t-J model on the square lattice and on ladders. At low doping, both the high-frequency RH* and the d.c. Hall coefficient RH0 follow qualitatively similar behavior at higher temperatures: being hole-like for T > Ts~1.5J and weakly electron-like for T < Ts. Consistent with experiments on cuprates, RH0 changes, in contrast to RH*, again to the hole-like sign below the pseudogap temperature T*, revealing a strong temperature variation for T->0.
Keywords
Cite
@article{arxiv.cond-mat/0203518,
title = {Temperature Dependence of Hall Response in Doped Antiferromagnets},
author = {Darko Veberic and Peter Prelovsek},
journal= {arXiv preprint arXiv:cond-mat/0203518},
year = {2009}
}
Comments
LaTeX, 4 pages, 4 figures, submitted to PRL