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Mode degeneracy due to vortex core removal in magnetic disks

Hoffmann, Frank, Woltersdorf, Georg, Perzlmaier, Korbinian, Slavin, A, Tiberkevich, V, Bischof, A, Weiss, Dieter and Back, Christian (2007) Mode degeneracy due to vortex core removal in magnetic disks. Physical Review B 76, 014416.

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Abstract

The mode spectrum of micrometer-sized ferromagnetic Permalloy disks, exhibiting a vortex ground state, is investigated by means of time-resolved scanning Kerr microscopy. The temporal evolution of the magnetization is probed after application of a fast in-plane field pulse. The lowest order azimuthal mode, a mode with only one diametric node, splits into a doublet as the disk diameter ...

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Item type:Article
Date:2007
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:7920
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