Abstract
ABSTRACTBismuth silicon oxide and Bismuthgermanium oxide single crystals havebeen grown by Czochraiski technique.Procedures and results of synthesis are reported.I. INTRODUCTIONSingle crystals of Bismuth siliconoxide (BSO-Bi125i020) and Bismuthgermanium oxide (BGO-Bi12GeO70) havenumber of applications. They are veryclosely related materials (both arecubic, belonging to the space group 123 [1], the only difference being the substitution of Ge or Si), possessingphotoconducting, photo]uminescent [21, piezoelectric [3] and electro-optical [4] properties. Their applicationsextend from transient holography (as image recording materials) to image processing, phase conjugation and spacetime light modulators [5]. Both crysta]sexhibit isotropic optical activity [6,7]. The optical rotatory power andits dispersion are remarkably large for Growth of Bismuth Silicon Oxide and BismuthGermanium Oxide Crystals by Czochralski Technique R. Gopalakrlshnan, D. Krishnamurthy, D. Arivuoli and P. Rainasamy Crystal Growth Centre, Anna University, Madras-600 025, India
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