The diffusion of 54Mn in α-phase samples having various relative resistivities was studied at 778 to 901C. The results could be described by:

R293/R4.2 = 150:     D (cm2/s) = 3.6 x 100 exp[-59.6(kcal/mol)/RT]

R293/R4.2 = 500:     D (cm2/s) = 7.8 x 10-1 exp[-60.1(kcal/mol)/RT]

R293/R4.2 = 1500:     D (cm2/s) = 1.1 x 10-1 exp[-59.0(kcal/mol)/RT]

V.Irmer, M.Feller-Kniepmeier: Journal of the Physics and Chemistry of Solids, 1972, 33[11], 2141-8