Open AccessEffects of microstructures on mesoscopic morphological transitions in deposition growth models
Author(s) -
Pedro A. Sánchez,
Tomás Sintes,
Oreste Piro,
Julyan H. E. Cartwright
Publication year - 2009
Publication title -
proceedings of the royal society a mathematical physical and engineering sciences
Language(s) - English
Resource type - Journals
eISSN - 1471-2946
pISSN - 1364-5021
DOI - 10.1098/rspa.2009.0311
Subject(s) - mesoscopic physics , microstructure , materials science , diffusion , tortuosity , deposition (geology) , porosity , surface diffusion , vapour deposition , thermal , statistical physics , chemical physics , nanotechnology , thin film , geology , condensed matter physics , composite material , thermodynamics , physics , chemistry , paleontology , adsorption , sediment
11 pages, 4 figures.-- Published online 7 October 2009.We study the influence of competing microstructure symmetries on the emergence of different morphologies during the growth by vapour deposition of thin solid films. We perform extensive numerical simulations with a minimal model that includes different microstructures, as well as thermal surface diffusion, to compute the corresponding structure zone model (SZM) and analyse, with statistical physics techniques, the details of transitional morphologies at border zones. We show that the maximum coordination number of the underlying microstructure provides a classification of the statistics of the transitional morphologies at the border between zones I (porous structures) and II (columnar faceted structures) of the SZM.This work was undertaken with the financial\udsupport of the CSIC project Hielocris. T.S. also ackowledges project FIS2007-60327.Peer reviewe
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