Single crystals of La3Nb0.5Ga5.5O14 were grown from different starting melt
compositions by the Czochralski technique. The effect of the melt composit
ion on crystal quality was examined by measuring the variation of chemical
composition and lattice parameters along the growth axis. The existence of
a solid solution range of La3Nb0.5Ga5.5O14 is discussed using X-ray crystal
structure analysis.