GaN single crystals were grown in Na or Na-Ga melts with different addition of Li3N by recrystallization under temperature gradient conditions (730-800degreesC). Colorless transparent platelet single crystals having a size of about 2 mm grew after 100h in some Na-Ga melts containing Li3N. The full-width at half-maximum of X-ray rocking curves measured for the (0 0 0 2) reflection of the crystals was 40-60 arcsec, showing that the crystals have a good quality. (C) 2004 Elsevier B.V. All rights reserved.