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Crossover from 2-dimensional to 3-dimensional aggregations of clusters on square lattice substrates

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Authors
Cheng, Yi
Zhu, Y.
Pan, Q.
Yang, B.
Tao, X.
Ye, G.
Date
2015
Type
Journal Article

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Cheng, Y. and Zhu, Y. and Pan, Q. and Yang, B. and Tao, X. and Ye, G. 2015. Crossover from 2-dimensional to 3-dimensional aggregations of clusters on square lattice substrates. Chinese Physics B. 24 (11).
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Chinese Physics B
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Fuels and Energy Technology Institute
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Abstract

© 2015 Chinese Physical Society and IOP Publishing Ltd. A Monte Carlo study on the crossover from 2-dimensional to 3-dimensional aggregations of clusters is presented. Based on the traditional cluster-cluster aggregation (CCA) simulation, a modified growth model is proposed. The clusters (including single particles and their aggregates) diffuse with diffusion step length l (1 = l = 7) and aggregate on a square lattice substrate. If the number of particles contained in a cluster is larger than a critical size sc, the particles at the edge of the cluster have a possibility to jump onto the upper layer, which results in the crossover from 2-dimensional to 3-dimensional aggregations. Our simulation results are in good agreement with the experimental findings.