The isotope effect for 6Li and 7Li self-diffusion in single crystals was investigated (table 196) by determining the relative difference between the mobilities of the isotopes using measurements of the isotopic concentration in sections, and the difference between the average isotopic concentrations in the anode part of a sample and the initial isotopic concentration of a crystal.

V.B.Ptashnik, A.N.Naumov: Fizika Tverdogo Tela, 1968, 10[3], 880-4

Table 196

Isotope Effect for 6Li and 7Li Self-Diffusion in LiF Single Crystals