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Vortex Core Switching by Coherent Excitation with Single In-Plane Magnetic Field Pulses

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Weigand, Markus ; Van Waeyenberge, Bartel ; Vansteenkiste, Arne ; Curcic, Michael ; Sackmann, Vitalij ; Stoll, Hermann ; Tyliszczak, Tolek ; Kaznatcheev, Konstantine ; Bertwistle, Drew ; Woltersdorf, Georg ; Back, Christian H. ; Schuetz, Gisela
Date of publication of this fulltext: 27 May 2010 10:28


The response of magnetic vortex cores to subnanosecond in-plane magnetic field pulses was studied by time-resolved x-ray microscopy. Vortex core reversal was observed and the switching events were located in space and time. This revealed a mechanism of coherent excitation by the leading and trailing edges of the pulse, lowering the field amplitude required for switching. The ...


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