Abstract
A theoretical model describing the nucleation of misfit dislocations (MD) in interfaces between films and plastically deformed substrates with disclinations is proposed. The ranges of the parameters (disclination strength, density of the disclination ensemble, film thickness, and degree of misfit) within which MD nucleation is energetically favorable are found. It is shown that at certain strengths of disclinations and densities of their ensemble the critical thickness of the film on a plastically deformed substrate with disclinations can exceed that on an undeformed defect-free substrate by a few times.
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Translated from Fizika Tverdogo Tela, Vol. 44, No. 7, 2002, pp. 1243–1248.
Original Russian Text Copyright © 2002 by Ovid’ko, She\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\)nerman.
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Ovid’ko, I.A., Sheinerman, A.G. Misfit dislocations in thin films on plastically deformed substrates. Phys. Solid State 44, 1298–1304 (2002). https://doi.org/10.1134/1.1494625
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DOI: https://doi.org/10.1134/1.1494625