Journal Articles Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces Year : 2004

Step-induced structural modification of Co thin films deposited on Au(2 3 3) vicinal surface

G Baudot
  • Function : Author
Y Girard
  • Function : Author
V Repain
A Coati
Y Garreau
  • Function : Author

Abstract

We report on a step-induced morphological modification in Cobalt thin films (from 5 to 90 monolayers (ML)) on Au(1 1 1) substrates studied by grazing incidence X-ray diffraction (GIXD). When the cobalt film is deposited on the highly stepped Au(2 3 3) substrate its structure is found to be mainly face centered cubic (FCC) whereas its natural bulk structure is hexagonal close-packed (HCP). Relaxation and stacking fault probability have been determined using a simple diffraction model which fits all the GIXD data. A vicinal Co interface including this stacking fault probability and a small rotation of the Co(1 1 1) planes with respect to the Au(1 1 1) planes is proposed which is in exact registry with the Au vicinal surface.

Dates and versions

hal-01153707 , version 1 (20-05-2015)

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Cite

G Baudot, Y Girard, V Repain, S Rohart, Stéphane Rousset, et al.. Step-induced structural modification of Co thin films deposited on Au(2 3 3) vicinal surface. Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2004, pp.171-182. ⟨10.1016/j.susc.2004.03.034⟩. ⟨hal-01153707⟩
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