New features of dislocation structures arising from lattice discreteness

Abstract

New aspects of a relation between lattice and dislocation structures are examined within a physically transparent theoretical scheme. Predicted features originating from the lattice discreteness include: (i) multiple core dislocation structures and (ii) their dependence on the position of the dislocation axis. These effects, which in principle can be observed directly and may also manifest themselves in dislocation motion or/and transformation (cross-slip) characteristics, are very general and present in any crystal in which they may be more or less pronounced depending on the material.