CZOCHRALSKI GROWTH OF LAALO3.
Semi-annual rept. 1 Jul-31 Dec 65,
LINDE DIV UNION CARBIDE CORP INDIANAPOLIS IND
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A new growth chamber was built to provide the capacity for growing boules capable of yielding 14-inch diameter by 3-inch length rods of Cr3 doped LaAlO3. Using this growth chamber, a seed rod of the correct orientation 111 was developed. Crystals containing Ca2 or Si4 were also grown to confirm the belief that they are the color center producing agents. As a result of these tests, additional color center producing agents were found, La3 lattice vacancies, and by proper annealing, these can be eliminated. Detwinning studies demonstrated the optimum direction to be the 111 direction of the pseudo-cube. Detwinning equipment was built which allows rods of either 18 or 14-inch diameter and up to 3-inches in length to be detwinned. Author
- Lasers and Masers