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The magnetic properties of Mn ultra-thin films epitaxially grown on (001) bcc Fe are studied by soft–X-ray magnetic circular dichroism. At room temperature, the Mn growth is two-dimensional without interdiffusion in Fe, as checked by RHEED and Auger spectroscopy. A net Mn magnetic moment is observed in the Mn thickness range up to 2 monolayers. We find that the Mn/Fe interfacial coupling is definitely ferromagnetic. In this range, the magnetic moment carried per Mn atom is found to be about 1.7 μ B , which is much smaller than the value of 3 μ B predicted for ferromagnetic Mn ultra-thin films.
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Andrieu et al. (1997) studied this question.
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