Specific features in shaping Bi12GeO20 crystals grown by low thermal gradient Czochralski technique

Germanosillenite ( BGO ) crystals have been grown by the low thermal gradient Czochralski technique [1] at crystallization rates of v = 0.05–4 mm/h. The evolution regularities of the faceted front forms have been studied taking into consideration their growth conditions (crystallization rate and the...

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Bibliographic Details
Published in:Crystallography reports 2009-12, Vol.54 (7), p.1261-1264
Main Authors: Shlegel, V. N., Pantsurkin, D. S.
Format: Article
Language:English
Subjects:
Crystal Growth
Crystallography and Scattering Methods
Physics
Physics and Astronomy
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Summary:Germanosillenite ( BGO ) crystals have been grown by the low thermal gradient Czochralski technique [1] at crystallization rates of v = 0.05–4 mm/h. The evolution regularities of the faceted front forms have been studied taking into consideration their growth conditions (crystallization rate and thermal conditions). The orientations of the faces forming the crystallization front during crystal growth in the 〈111〉 direction have been determined. The relationship between the front morphology (and, therefore, growth conditions) and the quality of crystals formed is established. The quality of the BGO crystals grown is evaluated by X-ray topography.
ISSN:1063-7745
1562-689X
DOI:10.1134/S1063774509070219