Analytical model of the deformation-induced inertial dynamics of a magnetic 
vortex

Yoo, Myoung-Woo; Mineo, Francesca; Kim, Joo-Von

doi:10.1063/5.0039535

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Analytical model of the deformation-induced inertial dynamics of a magnetic vortex

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Mineo, Francesca
Genes Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society;

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https://aip.scitation.org/doi/10.1063/5.0039535
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Citation

Yoo, M.-W., Mineo, F., & Kim, J.-V. (2021). Analytical model of the deformation-induced inertial dynamics of a magnetic vortex. Journal of Applied Physics, 129(5): 053903. doi:10.1063/5.0039535.

Cite as: https://hdl.handle.net/21.11116/0000-0008-3CC3-9

Abstract

We present an analytical model to account for the deformation-induced inertial dynamics of a magnetic vortex. The model is based on a deformation of the vortex core profile based on the Döring kinetic field, whereby the deformation amplitudes are promoted to dynamical variables in a collective-coordinate approach that provides a natural extension to the Thiele model. This extended model describes complex transients due to inertial effects and the variation of the effective mass with velocity. The model also provides a quantitative description of the inertial dynamics leading up to vortex core reversal, which is analogous to the Walker transition in domain wall dynamics. Our work paves the way for a standard prescription for describing the inertial effects of topological magnetic solitons