We investigate the Hall effect and the magnetoresistance of strongly correlated electron systems using the dynamical mean-field theory. We treat the low- and high-temperature limits analytically and explore some aspects of the intermediate-temperature regime numerically. We observe that a bipartite-lattice condition is responsible for the high-temperature result σxy∼1/T2 obtained by various authors, whereas the general behavior is σxy∼1/T, as for the longitudinal conductivity. We find that Kohler's rule is neither obeyed at high nor at intermediate temperatures.
@article{arxiv.cond-mat/9810207,
title = {Magnetotransport in the doped Mott insulator},
author = {Ekkehard Lange and Gabriel Kotliar},
journal= {arXiv preprint arXiv:cond-mat/9810207},
year = {2009}
}
Comments
9 pages, 7 figures, accepted for publication in Phys. Rev. B