The serial sectioning technique was used to study the diffusion of In in pure single crystals. The results, for temperatures ranging from 300 to 370C, could be described by:

D (cm2/s) = 1.6 x 10-4 exp[-0.68(eV)/kT]

J.Frisch, V.Hensel, G.Wolf: Berichte der Bunsengesellschaft für Physikalische Chemie, 1973, 77[7], 513-17