Magnetic circular dichroism in resonant photoemission combined with a space resolving photoelectron spectrometer has been applied to measure magnetic domain structures with a spatial resolution of ≊10 μm. The tunability of the photon energy and the kinetic energy of photoelectrons provides a high degree of element specifity and magnetic contrast. We have applied the technique to 1 monolayer Gd on Fe(100) which allowed to measure magnetic domains in the Gd overlayer independently from the domains of the Fe substrate. Due to the antiferromagnetic coupling between Fe and Gd and because of the element specifity we could observe inverted domain images for the substrate and the overlayer.
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Kachel et al. (1994) studied this question.
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