It was found that crystals that had been grown at various temperatures had differing dislocation structures. The dislocations in crystals which were grown at lower temperatures were deflected from directions that were characterized by a minimum elastic energy per unit growth length. The deflection of grown-in dislocation orientations depended upon the morphology of the growing crystal face or, more precisely, on the occurrence of macro-steps at the growing surface.

I.L.Smolskii, E.B.Rudneva: Physica Status Solidi A, 1994, 141[1], 99-107