It was found that the interstitial Au diffusivity at between 700 and 1300C could be described by:

D(cm2/s) = 2.4 x 10-4exp[-0.39(eV)/kT]

Mechanism of Gold Diffusion into Silicon. W.R.Wilcox, T.J.LaChapelle: Journal of Applied Physics, 1964, 35, 240