Vansteenkiste, A. and De Baerdemaeker, J. and Chou, K. W. and Stoll, H. and Curcic, M. and Tyliszczak, T. and Woltersdorf, G. and Back, C. H. and Schuetz, G. and Van Waeyenberge, B. (2008) Influence of domain wall pinning on the dynamic behavior of magnetic vortex structures: Time-resolved scanning x-ray transmission microscopy in NiFe thin film structures. PHYSICAL REVIEW B, 77 (14): 144420. ISSN 1098-0121,
Full text not available from this repository.Abstract
Artificial domain wall pinning sites were created in micron-sized thin-film Ni(80)Fe(20) structures, and their influence on the vortex dynamics was investigated by using time-resolved scanning transmission x-ray microscopy. The domain wall pinning sites were introduced by means of focused ion beam etching in the form of antidots. The vortex gyration frequency increased in square-shaped structures but not in similarly modified disk-shaped structures, where no domain walls are present. This demonstrates that the domain wall pinning is causing the increased frequency. The effect is explained by the confinement of the domain wall motion to the portion of the structure that is circumscribed by the antidots and is in agreement with micromagnetic simulations.
| 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 Nov 2020 09:10 |
| Last Modified: | 05 Nov 2020 09:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/31153 |
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