Stability and dynamics of free magnetic polarons
Strongly Correlated Electrons
2009-10-31 v1
Abstract
The stability and dynamics of a free magnetic polaron are studied by Monte Carlo simulation of a classical two-dimensional Heisenberg model coupled to a single electron. We compare our results to the earlier mean-field analysis of the stability of the polaron, finding qualitative similarity but quantitative differences. The dynamical simulations give estimates of the temperature dependence of the polaron diffusion, as well as a crossover to a tunnelling regime.
Cite
@article{arxiv.cond-mat/9911109,
title = {Stability and dynamics of free magnetic polarons},
author = {M. J. Calderon and L. Brey and P. B. Littlewood},
journal= {arXiv preprint arXiv:cond-mat/9911109},
year = {2009}
}
Comments
4 pages including 4 .eps figures