The transport of Ni through P-doped [100] monocrystalline wafers of Czochralski material was measured at 450 to 540C by using Rutherford back-scattering techniques. By assuming a cluster model for interstitial Ni, with substitutional P and perhaps O, it was deduced that the Ni diffusivity was described by:

D (cm2/s) = 6.3 x 10-4 exp[-0.76(eV)/kT]

R.D.Thompson, D.Gupta, K.N.Tu: Physical Review B, 1985, 33[4], 2636-41