Interactions of spin waves with a magnetic vortex.
نویسندگان
چکیده
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 5 microm 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.
منابع مشابه
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عنوان ژورنال:
- Physical review letters
دوره 95 16 شماره
صفحات -
تاریخ انتشار 2005