Mechanism of Fast Axially Symmetric Reversal of Magnetic Vortex Core

O. V. Pylypovskyi; D. D. Sheka; V. P. Kravchuk; Yu. B. Gaididei; F. G. Mertens

doi:10.15407/ujpe58.06.0596

Mechanism of Fast Axially Symmetric Reversal of Magnetic Vortex Core

Authors

O. V. Pylypovskyi Taras Shevchenko National University of Kyiv
D. D. Sheka Taras Shevchenko National University of Kyiv
V. P. Kravchuk Bogolyubov Institute for Theoretical Physics, Nat. Acad. of Sci. of Ukraine
Yu. B. Gaididei Bogolyubov Institute for Theoretical Physics, Nat. Acad. of Sci. of Ukraine
F. G. Mertens Physics Institute, University of Bayreuth

DOI:

https://doi.org/10.15407/ujpe58.06.0596

Keywords:

magnetic vortex, nanodot, nanodisk, vortex random-access memories

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 the comprehensive vortex core dynamics, including the resonant behavior, weakly nonlinear regimes, and reversal dynamics. A chaotic dynamics of the vortex polarity is predicted. All analytical results are confirmed by micromagnetic simulations.

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Published

2018-10-10

How to Cite

Pylypovskyi, O. V., Sheka, D. D., Kravchuk, V. P., Gaididei, Y. B., & Mertens, F. G. (2018). Mechanism of Fast Axially Symmetric Reversal of Magnetic Vortex Core. Ukrainian Journal of Physics, 58(6), 596. https://doi.org/10.15407/ujpe58.06.0596

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Issue

Vol. 58 No. 6 (2013)

Section

Nanosystems

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