Abstract
X-ray Magnetic Circular Dichroism became mature and is used in a large variety of applications. Taking advantage of the element-specificity of XAS, a variety of important problems was addressed: e.g. magnetism and magnetic profiles at interfaces of nanostructures, induced magnetism at chemisorbed molecules, enhanced 2D spin-fluctuations in coupled ultrathin ferromagnet films, the revival of orbital magnetic moments and its relative alignment to the spin moment, limitations for the applicability of the integral XMCD sum rules, separation of dipolar (E1) and quadrupolar (E2) contributions in the XMCD. An equally important progress in the fundamental understanding is the symbiosis of theory and advanced experiments. In all examples given the combination of both was very successful. Theory can “switch on and off” various effects, i.e. L3-L2 edges, dipol-quadrupolar effects, layer selective magnetic moments, multiple vs. single scattering. This serves for a better understanding of magnetism on an atomic scale.
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