It was pointed out that crystalline lattices which were subjected to Peierls stresses could be regarded as being superlattices in which layer interactions played a fundamental role in the mechanism which triggered kink dislocations. A model for the description of such systems was treated in terms of a set of anisotropic parallel atomic chains which lay on a common substrate that mediated the interaction between the layers. The substrate potential was considered to be a non-linear periodic function of the relative displacement of the interlayer atoms. The Peierls-Nabarro potential and the resistive stress which governed the migration of the dislocations could then be estimated.

Kink Dislocations in Layered Lattices with Periodic Interlayer Substrate Interactions. A.M.Dikande: Physica Status Solidi B, 1998, 208[1], 5-14