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arXiv · 1212.2183

Mechanism of Fast Axially--Symmetric Reversal of Magnetic Vortex Core

Oleksandr V. Pylypovskyi·Denis D. Sheka·Volodymyr P. Kravchuk·Yuri Gaididei·Franz G. Mertens
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Abstract

The magnetic vortex core in a nanodot can be switched by an alternating transversal magnetic field. We propose a simple collective coordinate model which describes comprehensive vortex core dynamics, including resonant behavior, weakly nonlinear regimes, and reversal dynamics. A chaotic dynamics of the vortex polarity is predicted. All analytical results were confirmed by micromagnetic simulations.

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Oleksandr V. Pylypovskyi, Denis D. Sheka, Volodymyr P. Kravchuk, Yuri Gaididei, Franz G. Mertens. 2012-12-10. Mechanism of Fast Axially--Symmetric Reversal of Magnetic Vortex Core. https://doi.org/10.15407/ujpe58.06.0596

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