METHOD FOR PRODUCING RUTILE SINGLE CRYSTAL

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a rutile (TiO2 ) single crystal free from subgrains or small tilt grain boundaries, by growing the rutile single crystal within high pressure oxygen of 0.3 MPa or more by a floating zone (FZ) method using an infrared-concentrated oven. SOLUTION: The method for producing the rutile single crystal is characterized by that the rutile single crystal free from the subgrains and small tilt grain boundaries can be obtained, by growing the rutile (TiO2 ) single crystal within the high pressure oxygen of 0.3 MPa or more oxygen pressure by the floating zone (FZ) method using the infrared-concentrated oven.