Buess, Matthias and Knowles, T.P. J. and Hollinger, R. and Haug, T. and Krey, U. and Weiss, Dieter and Pescia, D. and Scheinfein, M. R. and Back, Christian H. (2005) Excitations with negative dispersion in a spin vortex. PHYSICAL REVIEW B, 71 (10): 104415. ISSN 1098-0121,
Full text not available from this repository.Abstract
Micron-sized ferromagnetic permalloy disks having an in-plane vortexlike configuration are excited by a fast-rise-time magnetic-field pulse perpendicular to the plane. The excited modes are imaged using time-resolved magneto-optic Kerr microscopy and Fourier transformation. Two types of modes are observed: modes with circular nodes and modes with diametric nodes. The frequency of the modes with circular nodes increases with the number of nodes. In contrast, the frequency of the modes with diametric nodes decreases with the number of nodes. This behavior is explained accurately by an analytical model.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAGNETOSTATIC MODES; FERROMAGNETIC-RESONANCE; PRECESSIONAL MOTION; DISK; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 25 May 2021 12:29 |
| Last Modified: | 25 May 2021 12:29 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36459 |
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