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

Research output: Contribution to journalArticlepeer-review

94 Scopus citations

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.

Original languageEnglish
Article number077201
JournalPhysical Review Letters
Volume102
Issue number7
DOIs
StatePublished - 17 Feb 2009
Externally publishedYes

Fingerprint

Dive into the research topics of 'Vortex core switching by coherent excitation with single in-plane magnetic field pulses'. Together they form a unique fingerprint.

Cite this