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Publication
Applied Physics Letters
Paper
Dislocation energetics in epitaxial strained islands
Abstract
We calculate (to first order in the Burgers vector) the energy of introducing dislocations into Stranski-Krastanow islands having equilibrium shape. These results suggest that misfit dislocations of different Burgers vector tend to segregate spatially within the islands, which may be a source of mosaic structure in films formed by island coalescence. © 2000 American Institute of Physics.