https://doi.org/10.1140/epjs/s11734-023-00800-0
Regular Article
Driven magnetic skyrmions in a narrow channel
1
Department of Physics, Virginia Tech, 24061-0435, Blacksburg, VA, USA
2
Center for Soft Matter and Biological Physics, Virginia Tech, 24061-0435, Blacksburg, VA, USA
Received:
20
September
2022
Accepted:
24
February
2023
Published online:
27
March
2023
Using a particle-based model for skyrmions, we numerically investigate the ordering processes that take place when subjecting interacting skyrmions in a narrow channel to a drive. Due to the interplay of repulsive wall–skyrmion interaction, repulsive skyrmion–skyrmion interaction, and velocity-dependent Magnus force, skyrmions are arranged in lines with different densities. In this ordering process, the Magnus force plays a facilitating role that accelerates the formation of the ordered lines when starting from a disordered initial state. Besides constant drive, we also consider the situation where the drive is periodically switched on and off, which leads to skyrmions transitioning from one arrangement to another. During this rearrangement, the Magnus force is found to impede the relaxation process.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
