Physical Review Letters · 1998 · 87 citations · 18 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsMaterials PhysicsSolid State PhysicsDeformation MechanismsDensity Functional TheoryDislocation MechanicsDislocation TheorySemiconductor DefectsStrain AnalysisDislocation Core StructureDislocation CoresDislocation InteractionsDislocation PhysicsDislocationsDouble PeriodElastic StrainPeriodic Boundary Conditions
The elastic strain field of a dislocation is highly affected by nearby dislocations. The effects of dislocation-dislocation interactions on elastic energy and core structure are analyzed using a new and self-consistent method to apply periodic boundary conditions on unit cells containing dislocations. Local density functional theory on hydrogen terminated clusters is used to gauge the effects of long-range elastic fields on the core structure of the $90\ifmmode^\circ\else\textdegree\fi{}$ partial in silicon. It is shown that the single and double period structures of this core are very close in energy, and that the structure adopted probably depends on the environment in which the dislocation is located.
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R. Peierls · Proceedings of the Physical Society · 1940 · 1.5K citations
Dislocations in a simple cubic lattice
F. R. N. Nabarro · Proceedings of the Physical Society · 1947 · 1.2K citations
Atomic and electronic structures of the 90° partial dislocation in silicon
James R. K. Bigger, D. A. McInnes, A. P. Sutton et al. · Physical Review Letters · 1992 · 186 citations