Nanosecond magnetic relaxation processes in ultrathin metallic films prepared by MBE

URN to cite this document:: urn:nbn:de:bvb:355-epub-149539
DOI to cite this document:: 10.5283/epub.14953

Urban, R. ; Heinrich, B. ; Woltersdorf, Georg ; Ajdari, K. ; Myrtle, K. ; Cochran, J. F. ; Rozenberg, E.

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Date of publication of this fulltext: 27 May 2010 07:42

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Abstract

Magnetic relaxation processes were investigated by ferromagnetic resonance (FMR) using crystalline Cr/Fe/GaAs(001) ultrathin film structures grown by molecular beam epitaxy (MBE). For Fe films thicker than 1.5 nm the extrinsic relaxation term showed evidence of two magnon scattering. Above 10 GHz the in-plane FMR linewidth was linearly dependent on the microwave frequency with ...