Magnetic damping in poly-crystalline Co25Fe75: Ferromagnetic resonance vs. spin wave propagation experiments

URN to cite this document:: urn:nbn:de:bvb:355-epub-397708
DOI to cite this document:: 10.5283/epub.39770

Körner, H. S. ; Schoen, M. A. W. ; Mayer, T. ; Decker, M. M. ; Stigloher, Johannes ; Weindler, T. ; Meier, Thomas Norbert G. ; Kronseder, Matthias

; Back, Christian H.

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Date of publication of this fulltext: 20 Mar 2019 13:14

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Abstract

We report on the investigation of the magnetic damping of a 10 nm thin, poly-crystalline Co25Fe75 film grown by molecular beam epitaxy. Ferromagnetic resonance (FMR) measurements reveal a low intrinsic magnetic damping alpha(FMR)(int) = (1.5+/-0.1) x 10(-3). In contrast, in patterned micrometer wide stripes, spin wave (SW) propagation experiments performed by time resolved scanning ...