Dissipation characteristics of quantized spin waves in nano-scaled magnetic ring structures
arXiv:0804.2200 · doi:10.1088/0022-3727/41/16/164017
Abstract
The spatial profiles and the dissipation characteristics of spin-wave quasi-eigenmodes are investigated in small magnetic Ni$_{81}$Fe$_{19}$ ring structures using Brillouin light scattering microscopy. It is found, that the decay constant of a mode decreases with increasing mode frequency. Indications for a contribution of three-magnon processes to the dissipation of higher-order spin-wave quasi-eigenmodes are found.