S. Andrieu et al., MAGNETISM OF MN ULTRA-THIN FILMS GROWN ON (001) BCC FE STUDIED BY X-RAY MAGNETIC CIRCULAR-DICHROISM, Europhysics letters, 38(6), 1997, pp. 459-464
The magnetic properties of Mn ultra-thin films epitaxially grown on (0
01) bcc Fe are studied by soft-X-ray magnetic circular dichroism. At r
oom temperature, the Mn growth is two-dimensional without interdiffusi
on in Fe, as checked by RHEED and Auger spectroscopy. A net Mn magneti
c 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 mu(B), which is much smaller than the value of 3 mu(B) predi
cted for ferromagnetic Mn ultra-thin films.