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Braems, I., Berthier, F., Creuze, J., Tetot, R. & Legrand, B. (2006) Complete miscibility between different crystallographic structures: Monte Carlo simulations of Cu-Ag deposited on Cu(001). Phys. Rev. B, 74 113406.
Added by: Richard Baschera (2016-10-21 13:38:38) Last edited by: Richard Baschera (2016-10-21 13:49:42) |
| Type de référence: Article DOI: 10.1103/PhysRevB.74.113406 Numéro d'identification (ISBN etc.): 1098-0121 Clé BibTeX: Braems2006 Voir tous les détails bibliographiques  |
Catégories: HORSIMN Mots-clés: alloy-films, cu(100), equilibrium, molecular-dynamics, orientation, overlayer, ru(0001), segregation, Surface, systems Créateurs: Berthier, Braems, Creuze, Legrand, Tetot Collection: Phys. Rev. B |
Consultations : 1/548
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Monte Carlo simulations of an AgcCu1-c monolayer deposited onto Cu(001) show that complete miscibility of two elements adopting different crystallographic structures can be observed in the surface, while experimental bulk phase diagrams preclude a similar phenomenon in the bulk. While the deposited pure Ag monolayer is pseudohexagonal and the pure Cu monolayer is square and pseudomorphic, for intermediate concentrations at sufficiently high temperatures a disordered state appears in which square and hexagonal environments, respectively due to Cu and Ag, coexist. As a result, the surface phase diagram does not present any miscibility gap at 650 K.
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