Journal of Crystal Growth, Vol.216, No.1-4, 359-362, 2000
An azimuthal pattern of heat field in beta-BaB2O4 crystal growth
The regime of convection in the medium of crystallization of beta-BaB2O4 (BBO) was improved through crystal growth in an azimuthally distributed heat field of the 3rd-order axial symmetry. As a result BBO crystals up to 360g weight have been grown in a crucible 100 mm in diameter using the Na2O solvent.