Interactions between [112] partial dislocations were studied by using atomistic simulations which were based upon the Ackland-Tichy-Vitek-Finnis many-atom interaction model. The atomistically calculated total energy was found to agree reasonably well with the corresponding elastic-continuum energy at large separations of the partial dislocations. However, with decreasing distance, the total energy increased (due to core-core repulsion) more steeply than did the elastic-continuum energy. It was concluded that the equilibrium separation (minimum total energy) was located at the point where the core-core overlap and the associated repulsion became negligible.

Atomistic Study of the Interactions between Two Partial Edge Dislocations in Gold J.Von Boehm, R.M.Nieminen: Solid State Communications, 1997, 104[2], 63-5