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Characterization of Fe–Nb sputtered thin films

Pires, M.J.M. ; Macedo, W.A.A. ; Cavalcanti, L.P. ; Carvalho, A. Magnus G.

The Journal of physics and chemistry of solids, 2015-11, Vol.86, p.36-41 [Periódico revisado por pares]

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Título:
Characterization of Fe–Nb sputtered thin films
Autor: Pires, M.J.M. ; Macedo, W.A.A. ; Cavalcanti, L.P. ; Carvalho, A. Magnus G.
Assuntos: Fe–Nb alloys ; Mössbauer and XPS characterization ; Surface oxidation
É parte de: The Journal of physics and chemistry of solids, 2015-11, Vol.86, p.36-41
Descrição: Structure, composition and chemical behavior of co-sputtered Fe–Nb thin films are analyzed by different techniques, as conversion electron Mössbauer spectroscopy, x-ray photoelectron spectroscopy and x-ray diffraction. It is shown that oxygen is determinative in hindering the Fe–Nb alloy formation and, as a result, Fe1−xO and Nb2O5 occur in significant amounts, even in vacuum. In spite of the oxygen role, a Fe–Nb alloy is formed in little amounts, which increase as the Nb content is increased. The increase of the Nb content is also related with the increase of Fe1−xO and with a decreasing of the metallic Fe present. Mössbauer data indicate the Fe–Nb phase present is the Fe2Nb Laves phase. •XPS and Mössbauer analysis of Fe–Nb thin films.•Fe2Nb in sputtered thin films.•Fe–Nb accelerated oxidation.
Editor: Elsevier Ltd
Idioma: Inglês

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