Spin-wave resonance

Developments which led to the observation of spin-wave resonance (SWR) spectra in metallic films are presented. The method is discussed with special emphasis placed on the selection of suitable film samples, the counting of resonance peaks, the assignment of mode numbers, the applicability of inhomogeneity models, and the electromagnetic corrections usually applied to the measured dispersion of the long-wavelength spin-wave peaks. Then, in a review of applications of the method, several points of interpretation which arose subsequent to the publication of the results, are discussed. Finally, some future uses of the SWR method are listed.