Physics – Condensed Matter – Materials Science
Scientific paper
2005-06-07
Phys. Rev. B 72, 092409 (2005)
Physics
Condensed Matter
Materials Science
4 pages, 5 figures. Accepted version, minor changes: discussion of soft x-ray reflectivity spectra included, references added
Scientific paper
10.1103/PhysRevB.72.092409
The epitaxial system Sm/Co(0001) was studied for Sm coverages up to 1 monolayer (ML) on top of ultrathin Co/W(110) epitaxial films. Two ordered phases were found for 1/3 and 1 ML Sm, respectively. The valence state of Sm was determined by means of photoemission and magnetic properties were measured by magneto-optical Kerr effect. We find that 1 ML Sm causes a strong increase of the coercivity with respect to that of the underlying 10 ML Co film. Element-specific hysteresis loops, measured by using resonant soft x-ray reflectivity, show the same magnetic behaviour for the two elements.
Doebrich K.
Gorovikov S.
Kaindl Gunter
Krupin Oleg
Prieto Jose Emilio
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