Volume 46, Number 2, April II 1999
|Page(s)||231 - 237|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 December 2003|
Parallel, antiparallel and no magnetic coupling in submonolayer Mn on Fe(110)
Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung (BESSY) Lentzeallee 100, D-14195 Berlin, Germany
2 Institut für Festkörperforschung, Forschungszentrum Jülich - D-52425 Jülich, Germany
Accepted: 1 February 1999
An unusual sequence of magnetic couplings in the epitaxial-growth system Mn/ Fe(110) is revealed using the element-selective magnetic circular X-ray dichroism (MCXD) method. Clean Mn shows an unprecedented vanishing magnetization up to 0.3 monolayers (ML). At 0.4 ML a parallel Mn-Fe coupling sets in with relatively small net Mn moment ( for 0.4–2 ML). Successive adsorption of oxygen changes the Mn-Fe coupling from parallel to zero to antiparallel and eventually to zero again.
PACS: 73.20.Hb – Impurity and defect levels; energy states of adsorbed species / 75.30.Pd – Surface magnetism
© EDP Sciences, 1999
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