Lenz, K.; Wende, Heiko; Kuch, W.; Baberschke, K.; Nagy, K.; Jánossy, A.:

Two-magnon scattering and viscous Gilbert damping in ultrathin ferromagnets

In: Physical Review B (aktuelle Jahrgänge), Jg. 73 (2006), S. 144424-1 - 144424-6
ISSN: 1095-3795
Zeitschriftenaufsatz / Fach: Physik
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.

Dieser Eintrag ist freigegeben.