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Marie, J. B., Braems, I., Bellec, A., Chacon, C., Creuze, J., Girard, Y., Gueddani, S., Lagoute, J., Repain, V. & Rousset, S. (2017) Incoherent Ag islands growth on Ni(100). Surf. Sci. 656 101–108. 
Added by: Richard Baschera (2017-02-02 14:10:19)   Last edited by: Richard Baschera (2017-02-06 15:36:11)
Type de référence: Article
DOI: 10.1016/j.susc.2016.10.004
Numéro d'identification (ISBN etc.): 0039-6028
Clé BibTeX: Marie2017
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Catégories: ID2M
Mots-clés: cu-ag, dynamics, films, Immiscible elements, model, Molecular statics simulations, monolayer, morphology, organization, Scanning tunneling microscopy, segregation, shape, stress, Submonolayer growth, transition
Créateurs: Bellec, Braems, Chacon, Creuze, Girard, Gueddani, Lagoute, Marie, Repain, Rousset
Collection: Surf. Sci.
Consultations : 9/632
Indice de consultation : 4%
Indice de popularité : 1%
Résumé     
Growth of two-dimensional superstructure and island morphologies of silver atoms evaporated on a nickel (100) surface are studied by scanning tunneling microscopy. Near-equilibrium islands form at moderate annealing temperature (lower than 500 K) and present two kinds of morphologies. While they share a common monolayer c(2x8) superstructure, two distinct populations of islands coexist: rounded islands grown on the surface and spindle-shaped islands grown inside the Ni surface. The latter present a clear saturation of their density with increasing coverage. These shapes are mostly dominated by boundary energies as confirmed by a simple two-dimensional Wulff model whose parameters are derived using molecular statics simulations. Further annealing to 700 K leads to long Ag strips decorating the Ni step edges.
  
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