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The magnetic behavior of monolayer and submonolayer quantities of Mn adsorbed on an Fe(100) surface is studied using the element-specific magnetic circular x-ray dichroism (MCXD) method in absorption. The shape of the Mn-MCXD spectrum for 0.02 monolayer coverage agrees well with a recent calculation for high-spin Mn if experimental broadening is taken into account. Also the size of the MCXD effect indicates a large net magnetic moment, with the asymmetry at the L₃ edge reaching 80% of the value predicted by the theoretical spectrum for the atomic d⁵ configuration. The sign of the Mn moment is antiparallel to the Fe substrate. With increasing coverage the net Mn magnetic moment rapidly decreases and vanishes for a complete monolayer Mn/Fe(100).
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Rader et al. (1997) studied this question.
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