Journal
JOURNAL OF SUPERHARD MATERIALS
Volume 35, Issue 3, Pages 131-136Publisher
ALLERTON PRESS INC
DOI: 10.3103/S1063457613030015
Keywords
diamond single crystals; magnesium-based systems; seed; silicon; boron
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Special features of the diamond seed-growth in the Mg-C growth system at pressure a parts per thousand currency sign 8.2 GPa and a temperature of similar to 1800-2000A degrees C have been studied. The grown diamonds have been investigated by Raman, photoluminescence, and IR spectroscopies. It has been shown that single crystals produced in this system are type IIa+IIb conditionally nitrogen-free and the basic impurities are boron and silicon. The reasons for the capture of the basic impurities, B and Si, have been considered.
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