The diffusive behavior of In in single crystals was studied at 729 to 1411K. The results could be described by:

parallel to c-axis:     D (cm2/s) = 6.0 x 101 exp[-2.30(eV)/kT]

perpendicular to c-axis:     D (cm2/s) = 1.0 x 101 exp[-2.03(eV)/kT]

E.D.Jones, H.Mykura: Journal of the Physics and Chemistry of Solids, 1978, 39[1], 11-8