Patchett, J. P. and Drouhin, M. and Liao, J. W. and Soban, Z. and Petit, D. and Haigh, J. and Roy, P. and Wunderlich, J. and Cowburn, R. P. and Ciccarelli, C. (2022) Symmetry effects on the static and dynamic properties of coupled magnetic oscillators. PHYSICAL REVIEW B, 105 (10): 104436. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
The effect of symmetry on the resonance spectra of antiferromagnetically coupled oscillators has attracted new interest with the discovery of symmetry-breaking induced anticrossings. Here, we experimentally characterize the resonance spectrum of a synthetic antiferromagnet Pt/CoFeB/Ru/CoFeB/Pt, where we are able to independently tune the effective magnetization of the two coupled magnets. To model our results, we apply the mathematical methods of group theory to the solutions of the Landau-Lifshitz-Gilbert equation. This general approach, usually applied to quantum-mechanical systems, allows us to identify the main features of the resonance spectrum in terms of symmetry breaking and to make a direct comparison with crystal antiferromagnets.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Prof. Jörg Wunderlich |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Feb 2024 06:47 |
| Last Modified: | 16 Feb 2024 06:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/57884 |
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