Different types of dislocation core were evidenced in Si depending on the deformation conditions. Perfect (shuffle) dislocations were found for high applied stresses whereas dissociated (glide) dislocations result from the application of moderate or low stresses. Attention was paid here to the characterization of such a transition and the possible transformation from one type of core to the other type of core. Experimental results suggested that these 2 types of dislocation were nucleated in 2 different ranges of temperature and stress rather than resulting from core transformations.

On the Nucleation of Shuffle Dislocations in Si. J.Rabier, J.L.Demenet: Physica Status Solidi A, 2005, 202[5], 944-8