Composition for growth of homogeneous lithium niobate crystals

摘要

A new compositional relationship in the starting charge of a crystal growth station (FIG. 1 ) provides homogeneous monocrystalline lithium niobate. A new measurement system (FIG. 2 ) provides Curie point values of significantly greater accuracy then that of conventional measurements. Careful control of the starting charge composition for crystal growth and effective utilization of the measurement system enable the determination of the compositional range of starting charges for producing congruent crystalline production. The composition corresponds to a mol percentage of 48.35+/-.01 to 48.40+/-.01 of Li2O and the remainder Nb2O5 for producing homogeneous crystal whose solidification fraction of the molten charge exceeds that which was heretofore achievable.