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Spin-wave-driven tornado-like dynamics of three-dimensional topological magnetic textures

Physics

Spin-wave-driven tornado-like dynamics of three-dimensional topological magnetic textures

L. Qiu, L. Shen, et al.

This groundbreaking research by Lei Qiu, Laichuan Shen, and Ka Shen uncovers tornado-like dynamics in skyrmion tubes and chiral bobbers through micromagnetic simulations, promising a novel method to differentiate between these intriguing magnetic structures based on their unique motion characteristics.

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Playback language: English
Abstract
This paper reports on micromagnetic simulations investigating the spin-wave-driven dynamics of skyrmion tubes (SkTs) and chiral bobbers (ChBs) in thick magnetic films. The simulations predict tornado-like dynamics in both structures, characterized by lateral rotation of topological centers with distorted profiles in the thickness direction. SkT velocity scales with driving power, while ChB motion exhibits a threshold dependent on penetration length. This difference in behavior offers a potential method to experimentally distinguish ChBs from SkTs and estimate ChB penetration length.
Publisher
Communications Physics
Published On
Apr 04, 2024
Authors
Lei Qiu, Laichuan Shen, Ka Shen
Tags
micromagnetic simulations
spin-wave-driven dynamics
skyrmion tubes
chiral bobbers
tornado-like dynamics
topological centers
penetration length

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