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Title: Perpendicular magnetic anisotropy in chemically disordered FePd-FeV(100) alloy thin films
Author: Clavero, C.
García-Martín, J. M.
Armelles Reig, G.
Cebollada, Alfonso
Huttel, Y.
Estradé Albiol, Sònia
Albiol i Cobos, Jordi
Peiró Martínez, Francisca
Balcells i Argemí, Lluís
Keywords: Materials
Propietats magnètiques
Superfícies (Física)
Pel·lícules fines
Magnetic properties
Surfaces (Physics)
Thin films
Issue Date: 10-Apr-2006
Publisher: American Institute of Physics
Abstract: We find that the use of V(100) buffer layers on MgO(001) substrates for the epitaxy of FePd binary alloys yields to the formation at intermediate and high deposition temperatures of a FePd¿FeV mixed phase due to strong V diffusion accompanied by a loss of layer continuity and strong increase of its mosaic spread. Contrary to what is usually found in this kind of systems, these mixed phase structures exhibit perpendicular magnetic anisotropy (PMA) which is not correlated with the presence of chemical order, almost totally absent in all the fabricated structures, even at deposition temperatures where it is usually obtained with other buffer layers. Thus the observed PMA can be ascribed to the V interdiffusion and the formation of a FeV alloy, being the global sample saturation magnetization also reduced.
Note: Reproducció del document publicat a:
It is part of: Journal of Applied Physics, 2006, vol. 99, p. 073903-1-073903-9
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ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

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