The interaction between a point defect and an edge dislocation was studied within the framework of the gradient theory of elasticity. The change in the energy of the system, caused by a displacement of the point defect relative to the dislocation line, was calculated. The results of the analysis were used to describe edge dislocation pinning by impurity atoms.

Interaction of Point Defects with an Edge Dislocation in the Gradient Theory of Elasticity. N.M.Vlasov: Physics of the Solid State, 2001, 43[11], 2083-6