# Energetics and atomic mechanisms of dislocation nucleation in strained epitaxial layers

@article{Trushin2003EnergeticsAA, title={Energetics and atomic mechanisms of dislocation nucleation in strained epitaxial layers}, author={Oleg Trushin and Enzo Granato and S. -C. Ying and Petri Salo and Tapio Ala‐Nissila}, journal={Physical Review B}, year={2003}, volume={68}, pages={1-8} }

We numerically study the energetics and atomic mechanisms of misfit dislocation nucleation and stress relaxation in a two-dimensional atomistic model of strained epitaxial layers on a substrate with lattice misfit. Relaxation processes from coherent to incoherent states for different transition paths are studied using interatomic potentials of Lennard-Jones type and a systematic saddle-point and transition-path search method. The method is based on a combination of a repulsive potential… Expand

#### 42 Citations

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