Magneto-optical Properties of Spin-Valve Systems on the Basis of Au/Fe/Au/Co/Si

This paper presents the results of investigation of magneto-optical Kerr effect in pseudo spin-valve sys-tems on the basis of Fe, Co and Au. The significant dependence of coercetivity on such parameters as rela-tive position of ferromagnetic layers, their thicknesses and surface morphology was shown. The investiga-tion was carried out with AFM and TEM methods. Coercitivity value is greater for Au(3)/Fe(3)/Au(6)/Co(20)/SiO2/Si system. This is explained with different transitional metals growth mech-anisms on the substrate and on non-magnetic layer and with more varied surface morphology of films with thickness about 3 nm because of three-dimensional islands in Stranski - Krastanov growth mode.