The solubility, diffusion, and electrical behavior of Li in GaAs were investigated by means of chemical analysis, conductivity, and Hall-effect measurements. Both floating-zone and Bridgman crystals were examined. The diffusion was non-ideal and obeyed:

D(cm2/s) =0.53 exp[-1.0(eV)/kT]

C.S.Fuller, K.B.Wolfstirn: Journal of Applied Physics, 1962, 33[8], 2507-14