Method and apparatus for producing oxide series single crystals

摘要

When producing an oxide-series single crystal by continuously pulling downwardly by mu pulling down method, the composition of the single crystal can properly and quickly controlled to continuously produce the single crystal of a constant composition by changing the pulling rate of the single crystal. Preferably, the pulling rate is 20-300 mm/hr, and the pulling rate is decreased with the proceeding of growing of the single crystal.