Itnfluence of the structure of Fe on the interfacial spin and orbital induced magnetic moments of Ir in Fe/Ir multilayers

Abstract The influence of the structure of the Fe layer on the induced spin and orbital magnetic moments of Ir in Fe/Ir multilayers has been investigated by X-ray magnetic circular dichroism (XMCD) measurements at the Ir L 2,3 absorption edges. It was found that the Fe structural relaxation from BCC (thick Fe layer) to BCT (thin Fe layer) is accompanied by an increase of the induced orbital magnetic moment of Ir from 0.002 to 0.016 μ B . This shows experimentally that the interfacial structure distortions play important role in induced magnetism and therefore have to be considered in modern theoretical analysis.