The diffusive behavior of 55Mn and 56Mn in 5N-purity material was studied at 460 to 660C. The results could be described by:

D (cm2/s) = 1.04 x 102 exp[-2.19(eV)/kT]

G.M.Hood, R.J.Schultz: Philosophical Magazine, 1971, 23, 1479-89