SOLUTION FOR PRODUCING OXIDE CRYSTAL

摘要

PROBLEM TO BE SOLVED: To provide a solution for producing an oxide crystal, with which it is possible to improve the crystallinity of the oxide crystal when the oxide crystal having a Y123-type crystal structure is grown from a solution phase. SOLUTION: The solution is used for producing the oxide crystal by growing the oxide crystal having the Y123-type crystal structure from the solution phase by a liquid phase method. The solvent (melt) composition forming the solution phase is made to be a BaO-CuO-BaF2 system, and the atomic ratio of Ba to Cu is adjusted to be in the range of 42:58 to 20:80. Thereby, it becomes possible to lower the temperature at growing the crystal.