Growth of SbxBi1−x gradient single crystals by the Czochralski method with Bi feed

Abstract Sb x Bi 1− x alloy single crystals with Bi composition up to 18 at% were grown by the Czochralski method. The effective distribution coefficients of Bi were calculated and used for the growth of Sb–Bi single crystals. The influence of the pulling rate and Bi composition on dislocation density, composition distribution and lattice parameter c in the bulk was studied. Sb–Bi gradient single crystals with a varied Bi composition from 2 to 18 at% have been grown by a modified Czochralski method with Bi feed. The concentration profiles and the lattice parameter c in the grown Sb–Bi gradient single crystals were measured.