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arXiv · 2107.05401

Spin wave driven domain wall motion in easy-plane ferromagnets: a particle perspective

Jin Lan·Jiang Xiao
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Abstract

In easy-plane ferromagnets, we show that the interplay between a domain wall and a spin wave packet can be formulated as the collision of two massive particles with a gravity-like attraction. In the presence of magnetic dissipation, the domain wall mimics a particle subject to viscous friction, while the spin wave packet resembles a particle of variable mass. Due to attractive nature of the interaction, the domain wall acquires a backward displacement as a spin wave packet penetrating the domain wall, even though there is no change in momentum of the wave packet before and after penetration.

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Jin Lan, Jiang Xiao. 2021-07-12. Spin wave driven domain wall motion in easy-plane ferromagnets: a particle perspective. https://doi.org/10.1103/physrevb.106.l020404

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