FERROMAGNETIC-RESONANCE OF SPUTTERED CO MN MULTILAYERS/

Co/Mn multilayers were prepared by rf sputtering onto single-crystal M gO(001) and Al2O3(<11(2)over bar 0>) substrates resulting in, respecti vely, (001)- and (111)-oriented layers. The structure was thoroughly a nalyzed by x-ray scattering in various geometries. For the magnetic in vestigations, ferromagnetic resonance (FMR) was applied. Complementary measurements employed the magneto-optical Kerr effect and Faraday bal ance magnetometry. Results for the in-plane anisotropy, the surface an isotropy, the magnetization, and the FMR linewidth are presented. The comparison with other Co-based multilayer system indicates that both t he structural and the magnetic properties of the Co/Mn system are more complicated than in the case of systems with a presumably weaker elec tronic interaction at the interface. (C) 1996 American Institute of Ph ysics.