Fluctuations in the stress field, which were introduced by a pair of infinite walls of uniform-randomly distributed dislocations that were coupled into dipoles, were considered. It was found that, near to each wall, the fluctuations decayed as (x-h)-½, where x was the distance from a wall and h was equal to half of the inter-wall spacing. At distances, x, which were much larger than the separation of the walls, the stress fluctuations decreased as x-3/2.

A.A.Nazarov: Philosophical Magazine Letters, 1995, 72[1], 49-53