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Surface localized nitrogen incorporation in epitaxial FePd films and its effect in the Magneto-Optical properties

AuthorsMartín-González, Marisol; Huttel, Yves ; Cebollada, Alfonso ; Armelles Reig, Gaspar ; Briones Fernández-Pola, Fernando
Metal–metal magnetic thin film structures
X-ray photoelectron spectroscopy
X-ray scattering
Issue DateNov-2004
CitationSurface Science 571(1-3): 63-73 (2004)
AbstractIn situ exposure of FePd chemically disordered alloys to a N plasma prior to capping layer deposition produces a nitridation localized on the topmost 20 Å alloy region. In this region, a N–Fe bond prevails over the N–Pd. From the structural point of view, this nitridation does not induce relevant modifications on the lattice parameters compared with non-nitrided samples of equivalent composition, being only slightly modified in the alloys with higher Fe concentration. From the magnetic point of view, nitrogen incorporation induces a reduction or even a loss of the ferromagnetism of the nitrided FePd region, giving rise to a global decrease in the polar Magneto-Optical Kerr response in a wide spectral range due to the increase of the effective thickness of the non-magnetic capping layer.
Description11 páginas, 7 figuras, 1 tabla.
Publisher version (URL)http://dx.doi.org/10.1016/j.susc.2004.07.045
Appears in Collections:(IMN-CNM) Artículos
(ICMM) Artículos
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