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Título

Nonmagnetic γ″-FeN thin films epitaxially grown on Cu(001): Electronic structure and thermal stability

AutorNavío, C.; Álvarez, J.; Capitán, M. J. CSIC ORCID ; Yndurain, F.; Miranda, Rodolfo CSIC ORCID
Fecha de publicación14-oct-2008
EditorAmerican Physical Society
CitaciónPhysical Review B - Condensed Matter and Materials Physics 78: 155417 (2008)
ResumenWe report on a theoretical and experimental study of the growth, electronic structure, and thermal stability of ultrathin films of nonmagnetic iron nitride. The films are grown by evaporation of Fe, in a flux of atomic N produced by a plasma source, onto a Cu(001) surface kept at 300 K and characterized by x-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, and x-ray diffraction. The compound formed is identified as γ″ -FeN (001) growing epitaxially on the substrate. Its electronic structure and thermal stability has been studied and compared with first-principles calculations. This nitride film transforms to magnetic γ′ -Fe4 N phase by annealing above 650 K, opening new perspectives for applications of these films in functional magnetic nanostructures. © 2008 The American Physical Society.
Descripción6 págs.; 7 figs. ; PACS number s : 73.20. r, 71.20. b, 71.15.Mb, 68.37.Ef
Versión del editorhttp://dx.doi.org/10.1103/PhysRevB.78.155417
URIhttp://hdl.handle.net/10261/140473
DOI10.1103/PhysRevB.78.155417
Identificadoresdoi: 10.1103/PhysRevB.78.155417
issn: 1098-0121
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