Skyrmion Strings and Anomalous Hall Effect in Double Exchange Systems
M. J. Calderon, L. Brey
Abstract
We perform Monte Carlo simulations to obtain quantitative results for the anomalous Hall resistance, RA, observed in colossal magnetoresistance manganites. RA arises from the interaction between the spin magnetization and topological defects via spin-orbit coupling. We study these defects and how they are affected by the spin-orbit coupling within the framework of the double exchange model. The obtained anomalous Hall resistance is, in sign, order of magnitude and shape, in agreement with experimental data.
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