Spacing distribution functions for the one-dimensional point-island model with irreversible attachment

Details Spacing distribution functions for the one-dimensional point-island model with irreversible attachment Spacing distribution functions for the one-dimensional point-island model with irreversible attachment

2011-10-18

arxiv.org/abs/1110.3999v1

Physical Review E 84, 011601 (2011)

Physics

Condensed Matter

Statistical Mechanics

12 pages, 9 figures

Scientific paper

10.1103/PhysRevE.84.011601

We study the configurational structure of the point-island model for epitaxial growth in one dimension. In particular, we calculate the island gap and capture zone distributions. Our model is based on an approximate description of nucleation inside the gaps. Nucleation is described by the joint probability density $p^{XY}_{n}(x,y)$, which represents the probability density to have nucleation at position $x$ within a gap of size $y$. Our proposed functional form for $p^{XY}_{n}(x,y)$ describes excellently the statistical behavior of the system. We compare our analytical model with extensive numerical simulations. Our model retains the most relevant physical properties of the system.

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