Vortex core switching by coherent excitation with single in-plane magnetic field pulses

Markus Weigand, Bartel Van Waeyenberge, Arne Vansteenkiste, Michael Curcic, Vitalij Sackmann, Hermann Stoll, Tolek Tyliszczak, Konstantine Kaznatcheev, Drew Bertwistle, Georg Woltersdorf, Christian H. Back, Gisela Schütz

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

94 Zitate (Scopus)

Abstract

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 mechanism was confirmed by micromagnetic simulations and can be understood in terms of gyration around the vortex equilibrium positions, displaced by the applied field.

OriginalspracheEnglisch
Aufsatznummer077201
FachzeitschriftPhysical Review Letters
Jahrgang102
Ausgabenummer7
DOIs
PublikationsstatusVeröffentlicht - 17 Feb. 2009
Extern publiziertJa

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