Stability and dynamics of free magnetic polarons

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.

4 pages including 4 .eps figures

References in corpus (1)

• Pseudogap Formation in Models for Manganites

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