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Journal Articles Physical Review B: Condensed Matter and Materials Physics (1998-2015) Year : 2006

Complete miscibility between different crystallographic structures Monte Carlo simulations of Cu-Ag deposited on Cu(001)

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Abstract

Monte Carlo simulations of an Ag$_c$Cu$_{1-c}$ monolayer deposited onto Cu(001) show that a complete solubility 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 pseudo-hexagonal and the pure Cu monolayer is square and pseudomorphic, for intermediate concentrations 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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cea-02356014 , version 1 (09-12-2019)

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Isabelle Braems, F. Berthier, J. Creuze, R. Tetot, B. Legrand. Complete miscibility between different crystallographic structures Monte Carlo simulations of Cu-Ag deposited on Cu(001). Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2006, 74 (1-4), pp.113406. ⟨10.1103/PhysRevB.74.113406⟩. ⟨cea-02356014⟩
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