Critical layer thickness for misfit dislocation stability in multilayer structures
- 1 April 1990
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 67 (7) , 3343-3349
- https://doi.org/10.1063/1.345371
Abstract
The critical thickness for which the injection of misfit dislocations into a strained layer becomes thermodynamically favorable is treated in a Volterra dislocation model. Both a single interior layer and a multilayer (superlattice) case are considered. The results agree with earlier simple dipole predictions in the limit of large misfit dislocation spacing, but deviate at smaller spacings. With a particular core parameter, the results also agree with atomistic calculations using a parabolic potential for a constrained glide equilibrium case.This publication has 14 references indexed in Scilit:
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