Growth and optical activities of Sr3TaGa3Si2O14 single crystals

Crystals of Sr3TaGa3Si2O14 (STGS) with ordered langasite structure have been grown using the Czochralski CZ method along the [11̄0] axis. The as-grown crystals exhibit high optical quality and structure perfection. Giant optical rotation was observed by polarized microscope. Optical transmission was...

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Veröffentlicht in:	Journal of crystal growth 2004-03, Vol.263 (1-4), p.389-393
Hauptverfasser:	Wang, Zengmei, Yuan, Duorong, Wei, Aijian, Qi, Haifeng, Shi, Xuzhong, Xu, Dong, Lü, Mengkai
Format:	Artikel
Sprache:	eng
Schlagworte:	A1. Optical microscopy A1. X-ray diffraction A2. Czochralski method B1. Oxides B2. Piezoelectric materials B3. Infrared devices Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Growth from melts zone melting and refining Materials science Methods of crystal growth physics of crystal growth Optical activity Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of bulk materials and thin films Optical rotatory power Physics
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Zusammenfassung:	Crystals of Sr3TaGa3Si2O14 (STGS) with ordered langasite structure have been grown using the Czochralski CZ method along the [11̄0] axis. The as-grown crystals exhibit high optical quality and structure perfection. Giant optical rotation was observed by polarized microscope. Optical transmission was measured at various wavelengths between crossed polarizer. Optical activities were obtained by TU1900 UV-Vis spectrophotometer and found STGS crystals showed large values of ρ.
ISSN:	0022-0248 1873-5002
DOI:	10.1016/j.jcrysgro.2003.11.098