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Three-Dimensional Numerical Simulation of Interacting Dislocations in a Strained Epitaxial Surface Layer

  • R. V. Kuktat (a1) and L. B. Freundt (a2)


In the context of elastic dislocation theory, the glide of arbitrarily shaped dislocations near a free surface is simulated numerically. The simulation is made possible by utilizing a compact line-integral representation of the elastic field produced by a piecewise planar dislocation loop near a free surface. The interaction between a threading dislocation and a misfit dislocation in its path is simulated and the blocking effect is shown to be much more significant than found in simulations which neglect free surface effects.



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  • EISSN: 1946-4274
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