Lateral diffusion of 119mSn in evaporated thin films was studied at -50 to 198C. The low-temperature grain boundary diffusivity, and that above 80C, could be described by:

D (cm2/s) = 4.9 x 100 exp[-11.7(kcal/mol)/RT]

D (cm2/s) = 8.3 x 10-2 exp[-9.79(kcal/mol)/RT]

P.Singh, M.Ohring: Journal of Applied Physics, 1984, 56[4], 899-907