The concentration, x, of substitutional atoms which transformed via the kick-out mechanism during Au diffusion was measured as a function of d, the density of dislocations. Well-characterized dislocation distributions were produced in the float-zone (111) samples by using a special deformation procedure. Two domains, with d less than 104/cm2 or greater than 107/cm2, were found which were such that x was independent of d. In the intermediate range, x was proportional to d½; in agreement with theory. The sink efficiency was equal to 0.3. This value was higher than previously reported measurements. It was concluded that the sink efficiency was sensitive to the type of dislocation which was involved. There was a wide transient zone, between the d½ behavior and the constant value above 107/cm2, whose cause was unclear.

B.Pichaud, G.Mariani: Journal de Physique III, 1992, 2[3], 295-302