The diffusion of bismuth in single crystals was measured by using a spectrophotometric method at 275 to 674C. The Arrhenius plot consisted of two straight lines intersecting at about 400C. The corresponding diffusion coefficients were expressed by:

<400C:     D(cm2/s) = 1.7 x 10-3 exp[-0.63(eV)/kT]

>400C:     D(cm2/s) = 5.6 x 10-3 exp[-0.97(eV)/kT]

R.Reisfeld, A.Honigbaum: The Journal of Chemical Physics, 1968, 48[12], 5565-9