A 7Li nuclear magnetic resonance study was made of the bronzes, V3Li0.63NaO8 and V3Li0.59NaO8, by measuring the line-widths, spin-lattice and spin-spin relaxation times. The self-diffusion coefficients (10-11cm2/s) were lower than the chemical diffusion coefficients, which had been measured by using electrochemical techniques. This discrepancy was explained in terms of differing contributions to the enhancement factor.
G.Wang, J.Roos, D.Brinkmann, M.Pasquali, G.Pistoia: Journal of the Physics and Chemistry of Solids, 1993, 54[7], 851-5