The possibility of rigid and non-rigid diffusion of the walls in double-walled carbon nanotubes with armchair and zig-zag walls was considered. Diffusion coefficients and mobilities were calculated using ab initio values of the barriers to relative motion of the walls.

Diffusion of Walls in Double-Walled Carbon Nanotubes. E.Bichoutskaia, M.I.Heggie, Y.E.Lozovik, A.M.Popov: Fullerenes Nanotubes and Carbon Nanostructures, 2006, 14[2-3], 215-20