Sproll, Markus and Noske, Matthias and Bauer, Hans and Kammerer, Matthias and Gangwar, Ajay and Dieterle, Georg and Weigand, Markus and Stoll, Hermann and Woltersdorf, Georg and Back, Christian H. and Schuetz, Gisela (2014) Low-amplitude magnetic vortex core reversal by non-linear interaction between azimuthal spin waves and the vortex gyromode. APPLIED PHYSICS LETTERS, 104 (1): 012409. ISSN 0003-6951, 1077-3118
Full text not available from this repository.Abstract
We show, by experiments and micromagnetic simulations in vortex structures, that an active "dual frequency" excitation of both the sub-GHz vortex gyromode and multi-GHz spin waves considerably changes the frequency response of spin wave mediated vortex core reversal. Besides additional minima in the switching threshold, a significant broadband reduction of the switching amplitudes is observed, which can be explained by non-linear interaction between the vortex gyromode and the spin waves. We conclude that the well known frequency spectra of azimuthal spin waves in vortex structures are altered substantially, when the vortex gyromode is actively excited simultaneously. (C) 2014 AIP Publishing LLC.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EXCITATION; DYNAMICS; FIELD; STATE; |
| 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: | 28 Nov 2019 10:37 |
| Last Modified: | 28 Nov 2019 10:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/10834 |
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