Structural defects in flux-grown stoichiometric LiNbO_3 singel crystals

摘要

The effect of growth conditions on the crystal perfection of stoichiometric lithium niboate LiNbO_3 prepared by the high-temperature top-seeded solution growth technique (HTTSSG) from potassium containing flux was investigated. Flux compositions between 0.09 and 0.21 K_2O/LiNbO_3 ratio were tested, and it was found that LiNbO_3 forms an eutectic system with the K_2O, which is considered as the solvent in the system.