Interfacial magnetism and anisotropy in Fe/Pt multilayers

Abstract

Magnetic properties of rf-spuUered Fe / Pt multilayers with fixed Pt layer thickess [tPt = 15A) and variable Fe-layer thickness {2ÁA < 1) have been studied by TnagĩieẨisation using a vibrating sample magnetometer at room temperature. The results show that in the Fe / Pt interfaces, which formed hy a Pt — Fe alloy. a positive polarisation of the induced Pf-moment with respect to Fe-moment was found and a perpandicular interfacial anisotropy was evidenced. These behaviors arc described in terms of the hyhbrisation between the 3d(Fe) and 5d(Pt) states.