Alternative understanding of the skyrmion Hall effect based on one-dimensional domain wall motion
Mesoscale and Nanoscale Physics
2022-11-11 v2 Materials Science
Applied Physics
Abstract
A moving magnetic skyrmion exhibits transverse deflection. This so-called skyrmion Hall effect has been explained by the Thiele equation. Here, we provide an alternative interpretation of the skyrmion Hall effect based on the dynamics of domain walls enclosing the skyrmion. We relate the spin-torque-induced local rotation of the domain wall segments to the shift of the skyrmion core, explaining the skyrmion Hall effect at the micromagnetic level. Bases on our intuitive interpretation, we also show that the skyrmion Hall effect can be suppressed by combining the spin-transfer and spin-orbit torques, whereby removing the major obstacle to utilizing skyrmions in devices.
Keywords
Cite
@article{arxiv.2211.04949,
title = {Alternative understanding of the skyrmion Hall effect based on one-dimensional domain wall motion},
author = {Kyoung-Woong Moon and Jungbum Yoon and Changsoo Kim and Jae-Hun Sim and Se Kwon Kim and Soong-Geun Je and Chanyong Hwang},
journal= {arXiv preprint arXiv:2211.04949},
year = {2022}
}