Thin-film evolution equation for a strained solid film on a deformable substrate: Numerical steady states
J. Appl. Phys. 102, 073503 (2007); doi:10.1063/1.2785024
Published 1 October 2007
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We consider the nonlinear behavior of the thin-film evolution equation for a strained solid film on a substrate. The evolution equation describes morphological changes to the film by surface diffusion in response to elastic energy, surface energy, and wetting energy. Due to the thin-film approximation, the elastic response of the film is determined analytically, resulting in a self-contained evolution equation which does not require separate numerical solution of the full three-dimensional elasticity problem. Using a pseudospectral predictor-corrector method we numerically determine the family of steady state solutions to this evolution equation which correspond to quantum dot and quantum ridge morphologies.
©2007 American Institute of Physics
| History: | Received 15 May 2007; accepted 6 August 2007; published 1 October 2007 |
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http://link.aip.org/link/?JAPIAU/102/073503/1 |
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