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  1. 1 Acta Physica Polonica A

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  1. 1 2008

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  1. 1 Tornau E.

  2. 1 Zvejnieks G.

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Simulation of Reaction-Induced Phase Separation in Surface Alloy

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Zvejnieks G., Tornau E.
Acta Physica Polonica A
|
2008
|
vol. 113
|
issue 3
1099-1102
EN
Using kinetic Monte Carlo method we simulate the dynamics of biatomic Au_{0.3}Ni_{0.7} surface alloy separation on Ni(111) due to Ni(CO)_4 out-reaction. The experiment of Vestergaard et al. is modeled by counterbalancing dynamical processes and interactions between reactants. The simulations demonstrate step flow rate increase with CO coverage, c_{CO}, in qualitative agreement with the experiment only for c_{CO} ≲ 0.45 monolayer. Moreover, we demonstrate both CO influence on reaction process and Au domain formation.
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