Method and flux for growing single crystals of garnet or ortho ferrites
Abstract
Abstract A FLUX CONSISTING OF BAO, B2O3 AND A BARIUM HALIDE SUCH AS BAF2, BAC12, BABR2 OR BAI2 IS USED FOR THE SOLUTION GROWTH OF SYNTHETIC GARNETS AND ORTHOFERRITES WHEN APPROPRIATE AMOUNTS OF THE PROPER NUTRIENTS ARE DISSOLVED IN THIS FLUX AND ALLOWED TO PRECIPITATE OUT AS SINGLE CRYSTALS. THIS OCCURS EITHER BY SLOWLY COOLING AN INITIALLY UNSATURATED SOLUTION, OR BY CONTINUOUSLY DISSOLVING NUTRIENT IN A HOTTER REGION OF THE SOLUTION, TRANSPORTING IT DOWN A TEMPERATURE GRADIENT AND ALLOWING IT TO PRECIPITATE OUT IN THE COOLER REGION OF THE SOLUTION. THE PRECIPITATION MAY OCCUR ON A SEED CRYSTAL OF THE SAME MATERIAL PLACED IN THE COOL REGION OF THE SOLUTION (A BULK GROWTH PROCESS), OR IT MAY OCCUR HOMOEPITAXIALLY ON A THIN SUBSTRATE OF THE SAME MATERIAL OR HETEROEPITAXIALLY ON A SUBSTRATE OF DIFFERENT COMPOSITION.
Inventors
- 👤 Ronald Hiskes
Bibliographic Details
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