Dislocation Energies in NaCl

Publisher Website
Google Scholar
Abstract
The energies for both screw and edge dislocations in rock salt have been investigated. The effect of elastic anisotropy has been incorporated into the contribution from the region outside the core. Detailed calculations have been carried out for the energies of the cores themselves as a function of radius, and joined smoothly to the curves of the elastic theory. The core calculations are based on the Born-Mayer model and employ the formulas of Madelung for the potentials of rows of uniformly spaced charges.