Effects of Base Layer Preparation Condltions on the Magneto-Optic Properties in Co/Pd and Co/Pt Multilayers

抄録

Co/Pd and Co/Pt multilayers wilt Pd or Pt base layers were prepared by rf magnetron sputtering and the effects of sputtering pressure during the formation of base layers on the magneto-optical properties of multilayers were investigated. It has been found that coercivity of Co/Pd multilayers was strongly dependent on the sputtering pressure of base layer and could be enhanced to a great extent without noticeable change of Kerr rotation angle by increasing the sputtering pressure of base layer. On the contrary, it turned out that the deposition pressure of base layer gave a little effect on the coercivity of Co/Pt multilayers. For the both multilayers, rectangularity of M-H curves became bad as the deposition pressure of base layer increased.