Curcic, Michael and Van Waeyenberge, Bartel and Vansteenkiste, Arne and Weigand, Markus and Sackmann, Vitalij and Stoll, Hermann and Faehnle, Manfred and Tyliszczak, Tolek and Woltersdorf, Georg and Back, Christian H. and Schuetz, Gisela
Polarization Selective Magnetic Vortex Dynamics and Core Reversal in Rotating Magnetic Fields.
Physical Review Letters (PRL) 101 (19), p. 197204.
at publisher (via DOI)
We report on the observation of magnetic vortex dynamics in response to rotating magnetic fields in submicron platelets. Unlike linear fields
or spin polarized currents, which excite both vortex core polarization
states, an in-plane rotating field can selectively excite one of the
polarization states. We demonstrate by direct imaging with
time-resolved scanning x-ray microscopy ...
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