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arXiv · 1801.00774

The effect of the Magnus force on skyrmion relaxation dynamics

Barton L. Brown·Uwe C. Täuber·Michel Pleimling
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Abstract

We perform systematic Langevin molecular dynamics simulations of interacting skyrmions in thin films. The interplay between Magnus force, repulsive skyrmion-skyrmion interaction and thermal noise yields different regimes during non-equilibrium relaxation. In the noise-dominated regime the Magnus force enhances the disordering effects of the thermal noise. In the Magnus-force-dominated regime, the Magnus force cooperates with the skyrmion-skyrmion interaction to yield a dynamic regime with slow decaying correlations. These two regimes are characterized by different values of the aging exponent. In general, the Magnus force accelerates the approach to the steady state.

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Barton L. Brown, Uwe C. Täuber, Michel Pleimling. 2018-01-02. The effect of the Magnus force on skyrmion relaxation dynamics. https://doi.org/10.1103/physrevb.97.020405

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