Monte Carlo simulation of film growth in a phase separating binary alloy model

Xiuping Tao, Y. Shim and D.P. Landau

Physica A: Statistical Mechanics and its Applications, 2008, vol. 387, issue 11, 2495-2503

Abstract: Using a kinetic Monte Carlo method, we simulate binary film (A0.5B0.5/A) growth on an L×L square lattice with the focus on the domain growth behaviour. We compute the average domain area, A(t), as a measure of domain size. For a sufficiently large system, we find that A(t) grows with a power law in time with A(t)∼t2/3 after the initial transient time. This implies that the dynamic exponent for domain growth with non-conserved order parameter is z=3, a value which was theoretically predicted for the conserved order parameter case. Further analysis reveals that such a power-law behaviour emerges because the order parameter is approximately conserved after the early stage of growth.

Keywords: Monte Carlo; MBE; Thin film; Domain growth (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:387:y:2008:i:11:p:2495-2503

DOI: 10.1016/j.physa.2008.01.014

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