A computer simulation study of self-diffusion along the cores of 4 different Shockley partial dislocations was carried out for face-centered cubic C60 crystals. The Girifalco spherical intermolecular potential was used. The computations showed that, in the case of a monovacancy mechanism, the migration energy along the dislocation core was lowered to 2.6eV (from 6eV in the perfect crystal) at maximum. For a divacancy mechanism, it was lowered to 1.8eV (from 2.6eV in the perfect crystal), at maximum.

H.Hayashi, S.Tamaki, N.Ide, I.Okada, K.Kojima: Japanese Journal of Applied Physics - 1, 2002, 41[11A], 6486-7