Growth of Hg2Cl2 and Hg2Br2 single crystals by physical vapor transport

Large crystals of Hg2Cl2 and Hg2Br2 (48 mm in diameter, up to 600 g in weight) have been grown by the physical vapor transport (PVT) technique in closed ampoules in vertical configuration without contact with the ampoule walls. The starting materials have been pre-purified by resublimation. Seed sel...

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Bibliographic Details
Published in:Journal of crystal growth 2008-05, Vol.310 (10), p.2457-2463
Main Authors: KIM, Joo-Soo, TRIVEDI, Sudhir B, SOOS, Jolanta, GUPTA, Neelam, PALOSZ, Witold
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Growth from vapor
Materials science
Methods of crystal growth
physics of crystal growth
Physics
Theory and models of crystal growth
physics of crystal growth, crystal morphology and orientation
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Summary:Large crystals of Hg2Cl2 and Hg2Br2 (48 mm in diameter, up to 600 g in weight) have been grown by the physical vapor transport (PVT) technique in closed ampoules in vertical configuration without contact with the ampoule walls. The starting materials have been pre-purified by resublimation. Seed selection has been accomplished by having a narrow tubing at the tip of the growth ampoule. Thermochemical analysis of the system is done and discussed. The grown crystals show good transparency and good crystallographic quality. An acousto-optic modulator built from the Hg2Cl2 crystal showed good performance consistent with predicted device parameters.
ISSN:0022-0248
1873-5002
DOI:10.1016/j.jcrysgro.2007.12.067