Skyrmion strings contribution to the anomalous Hall effect in double-exchange systems - art. no. 054421

We perform Monte-Carlo simulations to obtain quantitative results for the a nomalous Hall resistance, R-A, observed in colossal magnetoresistance manga nites. R-A arises from the interaction between the spin magnetization and t opological defects via spin-orbit coupling. We study these defects and how they are affected by the spin-orbit coupling within the framework of the do uble exchange model. The obtained anomalous Hall resistance agrees in sign, order of magnitude, and shape with experimental data.