Mechanism of Fast Axially Symmetric Reversal of Magnetic Vortex Core
نویسندگان
چکیده
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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تاریخ انتشار 2013