The possible role which was played by Pandey's concerted exchange mechanism in Si diffusion and deformation was considered with regard to atomistic computer calculations by using a form of interatomic total energy potential which had been devised and modified by Tersoff. It was concluded that, if the concerted exchange was viable for self-diffusion, then a similar mechanism should exist for the creation of edge dipoles in high-temperature deformed Si, and in Si near to its melting point. It was shown that a metastable state which was created during concerted exchange was the smallest conceivable faulted edge dipole.

M.I.Heggie: Philosophical Magazine Letters, 1988, 58[2], 75-80