Measurements were made of the spin-lattice relaxation rate of spin-½ nuclei which migrated via translational diffusion on a simple-cubic lattice. The spin system was H in γ-TiH1.63 at 725K. The diffusivity was estimated to be equal to 1.70 x 10-7cm2/s.
N.Salibi, R.M.Cotts: Physical Review B, 1983, 27[5], 2625-9