Kuepper, K. and Bischoff, L. and Akhmadaliev, Ch. and Fassbender, J. and Stoll, H. and Chou, K. W. and Puzic, A. and Fauth, K. and Dolgos, D. and Schuetz, G. and Van Waeyenberge, B. and Tyliszczak, T. and Neudecker, I. and Woltersdorf, G. and Back, C. H. (2007) Vortex dynamics in Permalloy disks with artificial defects: Suppression of the gyrotropic mode. APPLIED PHYSICS LETTERS, 90 (6): 062506. ISSN 0003-6951,
Full text not available from this repository. (Request a copy)Abstract
The dynamics of magnetic vortices in thin Permalloy disks having artificial defects in the form of small holes at different locations within the disk has been investigated by means of frequency-domain spatially resolved ferromagnetic resonance. It is found that the vortex can be effectively captured by such a defect. Consequently the commonly observed gyrotropic vortex motion in an applied microwave field of 1 mT is suppressed. However, if in addition a static magnetic field of at least 4.3 mT is applied, the vortex core is nucleated from the artificial defect and a modified gyrotropic motion starts again. (c) 2007 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAGNETIZATION DYNAMICS; REVERSAL; FIELD; |
| 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: | 22 Dec 2020 10:35 |
| Last Modified: | 22 Dec 2020 10:35 |
| URI: | https://pred.uni-regensburg.de/id/eprint/33190 |
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