The combination of X-ray magnetic circular dichroism being an element-speci
fic local probe for the magnetic microstructure and the transmission X-ray
microscope providing a spatial resolution of about 30 nm allows to image ma
gnetic domains with a huge contrast. Special virtues of this technique are
the applicability of varying magnetic fields thus allowing technologically
relevant studies of the evolution and the switching behaviour of domain str
uctures. Quantitative information on the local magnetization and in particu
lar a separation of spin and orbital moments is possible. Results obtained
at the Fe and Co L-3 edges in GdFe and PtCo multilayered systems demonstrat
e the potential of this new technique. (C) 1999 Elsevier Science B.V. All r
ights reserved.