Melt supercooling behavior and crystal growth of Ba(B 1− xM x) 2O 4 (M:Al or Ga)

Abstract

Supercooling behavior of BaB 2O 4 substituted with M (M:Al or Ga) for B was investigated. Moreover, single crystals were grown by the modified Czochralski method. Since Al and Ga are glass forming elements for the borates such as BaB 2O 4, large supercooling was obtained by the substitution of M for B. By controlling the M-amount single crystals of the low-temperature phase were grown, preventing glass formation. The merits of the substitution are the suppression of the solid-state phase-transformation during growth and cooling, and the crystal hardening.