Abstract
The control of crystal—melt interface shape during Czochralski (CZ) growth of lithium niobate (LiNbO3, LN) single crystal by crystal rotation was studied experimentally. The critical crystal rotation rate where inversion of crystal—melt interface occured was evaluated from the weight change of grown crystal under various conditions. With application of these and previous experimental results to our previous theoretical results for the crystal—melt interface, it can be said that the Marangoni convection is dominant in the melt and correlation equations based on the Marangoni convection for controlling crystal—melt interface shape are proposed.
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