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Phys. Rev. Lett. 77, 747–750 (1996)

[Issue 4 – 22 July 1996 ]

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Resonant Surface Magnetic X-Ray Diffraction from Co₃Pt(111)

S. Ferrer, P. Fajardo, F. de Bergevin, J. Alvarez, X. Torrelles, H. A. van der Vegt, and V. H. Etgens

European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France

Surface magnetic x-ray diffraction experiments have been done on the (111) surface of the ferromagnetic alloy Co₃Pt. This has been achieved by tuning the photon energy to the L_III absorption edge of Pt in order to benefit from the increased magnetic cross section at resonance. Analysis of the data reveals that the magnetism of the Pt atoms on the first atomic layer is smaller by about a factor of 2 than that of the Pt atoms in the bulk, the reason probably being the reduced Co concentration at the surface.

©1996 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v77/p747
DOI: 10.1103/PhysRevLett.77.747
PACS: 75.70.Ak, 68.35.-p

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