Volume 38, Number 6, May III 1997
|Page(s)||459 - 464|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Magnetism of Mn ultra-thin films grown on (001) bcc Fe studied by X-ray magnetic circular dichroism
Laboratoire de Métallurgie Physique et Science des Matériaux, CNRS-Université Henri Poincaré, BP239, 54506 Vandoeuvre, France
2 Laboratoire pour l'Utilisation du Rayonnement Electromagnétique, CNRS-CEA-Université Paris-sud, 91405 Orsay, France
3 Laboratoire de Physique des Matériaux de Surface Université Cergy-Pontoise, 95011 Cergy-Pontoise, France
Accepted: 18 April 1997
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 , which is much smaller than the value of predicted for ferromagnetic Mn ultra-thin films.
PACS: 75.70.Ak – Magnetic properties of monolayers and thin films / 68.55.-a – Thin film structure and morphology / 61.10.Ht – X-ray absorption spectroscopy: EXAFS, NEXAFS, XANES, etc
© EDP Sciences, 1997
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