The diffusive behavior of 72Ga in 5N-purity material was studied at 406 to 652C. The results could be described by:

D (cm2/s) = 4.9 x 10-1 exp[-29.24(kcal/mol)/RT]

N.L.Peterson, S.J.Rothman: Physical Review B, 1970, 1[8], 3264-73