Magnetic an magneto-optical properties of TbFeCo/(Pt, Pd, NdCo) multilayers

摘要

The magnetic and magneto-optical properties ofTbFeCo/(Pt, Pd, NdCo) multilayer Films prepared by sputter-deposition are discussed in conjunction with the multilayerstructure. It is most likely that Pt, Pd, and NdCo play a part inincreasing the moment of the transition metals in their sub-lattices. The effect of the Pt layers on the polar Kerr spectra issignificant at ultraviolet photon energies. A dramatic increase inthe magnetic moment and the #omega# #sigma#_(xy)" spectrumfor the TbFeCo/Pt multilayer strongly suggest the existence ofinterfacial FePt alloy layers, and this possibility is supported by asimulation of the Kerr spectra.