Calculations were made, to first-order in the Burgers vector, of the energy involved in introducing dislocations into Stranski-Krastanow islands of equilibrium shape. The results suggested that misfit dislocations with various Burgers vectors tended to segregate spatially within the islands. This could then be a source of mosaic structures in films which formed via island coalescence.

Dislocation Energetics in Epitaxial Strained Islands. B.J.Spencer, J.Tersoff: Applied Physics Letters, 2000, 77[16], 2533-5