Theoretical Considerations of Electrochemical Phase Formation in a Frank-van der Merwe System

Details Theoretical Considerations of Electrochemical Phase Formation in a Frank-van der Merwe System Theoretical Considerations of Electrochemical Phase Formation in a Frank-van der Merwe System

2001-06-06

arxiv.org/abs/cond-mat/0106122v1

Physics

Condensed Matter

24 pages, LaTeX2e, 10 PS figures, 2 JPEG figures, submitted to Journal of Electrochemical Society Subj-class

Scientific paper

Static calculation and preliminary kinetic Monte Carlo simulation studies are undertaken for the nucleation and growth on a model system which follows a Frank-van der Merwe mechanism. In the present case, we consider the deposition of Ag on Au(100) and Au(111) surfaces. The interactions were calculated using the embedded atom model. The process of formation and growth of 2D Ag structures on Au(100) and Au(111) is investigated and the influence of surface steps on this phenomenon is studied. Very different time scales are predicted for Ag diffusion on Au(100) and Au(111), thus rendering very different regimes for the nucleation and growth of the related 2D phases. These observations are drawn from application of a model free of any adjustable parameter.

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