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Micromagnetic Dissipation, Dispersion, and Mode Conversion in Thin Permalloy Platelets

URN to cite this document:
urn:nbn:de:bvb:355-epub-19192
DOI to cite this document:
10.5283/epub.1919
Buess, Matthias ; Haug, Thomas ; Scheinfein, M. ; Back, Christian
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Date of publication of this fulltext: 05 Aug 2009 13:34



Abstract

Micron-sized ferromagnetic Permalloy disks exhibiting an in-plane ferromagnetic vortex structure are excited by a fast rise time perpendicular magnetic field pulse and their modal structure is analyzed. We find azimuthal and axial modes. By a Fourier filtering technique we can separate and analyze the time dependence of individual modes. Analysis of the experimental data demonstrates that the ...

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