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Title

Perpendicular magnetic anisotropy in chemically disordered FePd–FeV(100) alloy thin films

AuthorsClavero Pérez, César CSIC ORCID; García-Martín, José Miguel CSIC ORCID ; Armelles Reig, Gaspar CSIC ORCID; Cebollada, Alfonso CSIC ORCID; Huttel, Yves CSIC ORCID ; Stradé, S.; Arbiol, J.
KeywordsPerpendicular magnetic anisotropy
Iron alloys
Palladium alloys
Vanadium alloys
Buffer layers
Magnetic epitaxial layers
Metallic epitaxial layers
Chemical interdiffusion
Issue Date10-Apr-2006
PublisherAmerican Institute of Physics
CitationJournal of Applied Physics 99, 073903 (2006)
AbstractWe 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.
Publisher version (URL)http://link.aip.org
http://dx.doi.org/10.1063/1.2187413
URIhttp://hdl.handle.net/10261/15405
DOI10.1063/1.2187413
ISSN0021-8979
Appears in Collections:(IMN-CNM) Artículos

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