Deutsch
Acremann, Y. and Kashuba, A. and Buess, Matthias and Pescia, D. and Back, Christian (2002) Magnetic Spatial Non-Uniformities on the Picosecond Timescale. Journal of Magnetism and Magnetic Materials 239 (1-3), pp. 346-350.
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Abstract
The magnetization of a Co disk with an in-plane flux-closure domain structure was subject to a picosecond magnetic field pulse perpendicular to the plane. Images with sub-micron spatial resolution have been recorded every 10 ps which reveal magnetic non-uniformities of the ferromagnetic resonance (FMR) response. A detailed analysis of the images shows a difference in the FMR frequencies of about 10% as a function of radius. In addition, the magnetization at the edge responds earlier to the applied field pulse. We discuss possible origins of these phenomena.
| Item Type: | Article | ||||
|---|---|---|---|---|---|
| Institutions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back | ||||
| Identification Number: |
| ||||
| Keywords: | Ferromagnetic resonance; Scanning kerr microscopy | ||||
| Subjects: | 500 Science > 530 Physics | ||||
| Status: | Published | ||||
| Refereed: | Yes, this version has been refereed | ||||
| Created at the University of Regensburg: | Yes | ||||
| Owner: | Webmaster Back | ||||
| Deposited On: | 20 Mar 2007 | ||||
| Last Modified: | 20 Jul 2011 23:04 | ||||
| Item ID: | 1910 |
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