The behavior of type-3d transition metal impurities was investigated by using deep-level transient spectroscopic and Hall-effect measurements. The diffusivity, at temperatures ranging from 873 to 1473K, was described by:

D(cm2/s) = 9 x 10-3exp[-1.55(eV)/kT]

H.Nakashima, T.Sadoh, H.Kitagawa, K.Hashimoto: Materials Science Forum, 1994, 143-147, 761-6. See also: Materials Science Forum, 1992, 83-87, 227-32