Magneto-optical effects of ultrathin ferro-, antiferro- and non-magnetic films

摘要

Thickness dependence of the magneto-optical Kerr effects (MOKE) in ultrathin ferromagnetic films, antiferromagnetic films and nonmagnetic films were measured carefully employing wedge shaped samples at room temperature. The oscillations of the polar Kerr ellipticity with respect to the film thickness and its energy dependence were observed for the Fe and Au ultrathin films, and revealed a fromation of spin-polarized quantum well states both in the bcc-Fe (100) layers and the fcc-Au(001) layers.