Vortex dynamics in Permalloy disks with artificial defects: Suppression of the gyrotropic mode

URN to cite this document:: urn:nbn:de:bvb:355-epub-149334
DOI to cite this document:: 10.5283/epub.14933

Kuepper, K. ; Bischoff, L. ; Akhmadaliev, Ch. ; Fassbender, J. ; Stoll, H. ; Chou, K. W. ; Puzic, A. ; Fauth, K. ; Dolgos, D. ; Schuetz, G. ; Van Waeyenberge, B. ; Tyliszczak, T. ; Neudecker, I. ; Woltersdorf, Georg ; Back, Christian H.

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Date of publication of this fulltext: 26 May 2010 12:10

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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 ...