Magnetic and structural properties of Fe/Al multilayers

Static and dynamic magnetic properties of Fe/Al multilayers, grown by RF magnetron sputtering on Si(1 0 0), are investigated.Magneto-Optical Kerr Effect shows in-plane uniaxial anisotropy and very soft behavior on six samples characterized by different number of bilayers.The coercive fields range between 2 and 8 Oe. Brillouin light scattering reveals spin-wave surface modes that depend on the number of Fe/Al repetitions and are attributed to the total multilayer stack and to individual layers