Magnetic Spatial Non-Uniformities on the Picosecond Timescale

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.1910

Acremann, Y. ; Kashuba, A. ; Buess, Matthias ; Pescia, D. ; Back, Christian

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Veröffentlichungsdatum dieses Volltextes: 05 Aug 2009 13:34

Alternative Links zum Volltext:DOI Verlag

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Zusammenfassung

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 ...