Abstract
The atomic structures, electrical properties, and line energies for threading screw and threading edge dislocations of wurtzite GaN are calculated within the local-density approximation. Both dislocations are electrically inactive with a band gap free from deep levels. These results are understood to arise from relaxed core structures which are similar to ( ) surfaces.
- Received 8 July 1997
DOI:https://doi.org/10.1103/PhysRevLett.79.3672
©1997 American Physical Society