Spectral measurements of the magneto-optical Kerr rotation and ellipticity in the media of optical recording

Abstract
Spectral measurements of Kerr rotation and ellipticity for TbFe and superlattice Co/Pt and Co/Pd samples are obtained by a novel technique. The results of measurements are accurate over a wavelength range of 350 to 1100 nm. The interference effect on the Kerr spectra of the TbFe samples are studied by applying the multilayer analysis program. The reflectivity and Kerr spectra of Co/Pt and Co/Pd superlattice samples are studied to understand the interference effect and the magneto-optic interactions.