Weigand, Markus and Van Waeyenberge, Bartel and Vansteenkiste, Arne and Curcic, Michael and Sackmann, Vitalij and Stoll, Hermann and Tyliszczak, Tolek and Kaznatcheev, Konstantine and Bertwistle, Drew and Woltersdorf, Georg and Back, Christian H. and Schuetz, Gisela (2009) Vortex Core Switching by Coherent Excitation with Single In-Plane Magnetic Field Pulses. PHYSICAL REVIEW LETTERS, 102 (7): 077201. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Oct 2020 09:39 |
| Last Modified: | 05 Oct 2020 09:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29465 |
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