Two-magnon damping in thin films in case of canted magnetization: Theory versus experiment

摘要: We present results for ferromagnetic resonance measurements in ultrathin magnetic films. Our aim is to investigate quantitatively the damping of spin motions where different sources are present. a polycrystalline 10-nm-thick Co film grown on GaAs using microwave frequencies between 4 and 24 GHz orientations static field. discuss role Gilbert two-magnon dampings (activated by defects film) within theoretical framework presented some years ago Arias Mills [Phys. Rev. B 60, 7395 (1999)] its extension case which magnetization tipped out plane [P. Landeros, R. E. Arias, D. L. Mills, Phys. 77, 214405 (2008)]. It found that linewidth vs. field angle data well reproduced theory several we obtain information about fundamental parameters as dynamical response prototype system.