Two-magnon scattering and viscous Gilbert damping in ultrathin ferromagnets

K. Lenz, H. Wende, W. Kuch, K. Baberschke, K. Nagy, A. Jánossy

Research output: Contribution to journalArticle

137 Citations (Scopus)

Abstract

Ferromagnetic resonance experiments of magnetic nanostructures over a large frequency range from 1 to 225 GHz are presented. We find unambiguous evidence for a nonlinear frequency dependence of the linewidth. The viscous Gilbert damping and two-magnon scattering are clearly separated. Both angular and frequency dependent measurements give a transverse scattering rate within the magnetic subsystem of the order of 109 s-1, whereas the longitudinal Gilbert relaxation into the thermal bath is one to two orders of magnitude smaller.

Original languageEnglish
Article number144424
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number14
DOIs
Publication statusPublished - May 12 2006

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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