Interactions of spin waves with a magnetic vortex

J. P. Park, P. A. Crowell

Research output: Contribution to journalArticlepeer-review

117 Scopus citations

Abstract

We have investigated azimuthal spin-wave modes in magnetic vortex structures using time-resolved Kerr microscopy. Spatially resolved phase and amplitude spectra of ferromagnetic disks with diameters from 5μm down to 500 nm reveal that the lowest order azimuthal spin-wave mode splits into a doublet as the disk size decreases. We demonstrate that the splitting is due to the coupling between spin waves and the gyrotropic motion of the vortex core.

Original languageEnglish (US)
Article number167201
JournalPhysical review letters
Volume95
Issue number16
DOIs
StatePublished - Oct 14 2005

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