Polar and longitudinal magnetooptic Kerr effect in Pt/Ni and Pd/Ni multilayers

Abstract

The paper deals with the magnetooptical spectroscopic studies of Pt/M and PdNi multilayers. The films were grown onto glass (pt/Ni) and mica (PdlNi) substrates by dual electron beam evaporation. In the WNi set the thickness of Pt layers was kept constant at 2 am while that of Ni layers was 1.2 and 2.9 nm. For the Pd/Ni set the individual Ni and Pd layer thicknesses varied k e e n 1 and 10 monoatomic layers. Simultaneous polar and longitudinal magnetooptical Kerr rotation and ellipticity experiments were carried out in the spectral range between 1.5 and 5.2 eV. The observed line broadening, shift andlor splitting are assigned to an effect of the interface M-Pd (or Ni-Pt) layers.