Ultrafast annular-magnetic-field-driven vortex-core reversals

By micromagnetic numerical simulations, we investigate the dynamics of vortex-core reversal in a soft magnetic nanodisk under the excitation of annular, perpendicular, resonant magnetic fields. The non-fundamental radial modes of the nanodisk are characterized into alternating radial-phase-regions f...

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Bibliographic Details
Main Authors: Zhenyu Wang, Ruifang Wang
Format: Article
Language:English
Published: AIP Publishing LLC 2016-12-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4973536