Crystal growth, structural perfection, phase transition, optical, and etching studies of doped glycine phosphite ferroelectric single crystals

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• 作者：R. Perumal ; S. Moorthy Babu ; G. Bhagavannarayana
• 关键词：Ferroelectrics ; Crystal growth ; Optical properties
• 刊名：Journal of Alloys and Compounds
• 出版年：2010
• 出版时间：27 August 2010
• 年：2010
• 卷：505
• 期：1
• 页码：268-272
• 全文大小：715 K

文摘

Glycine phosphite (GPI) single crystal was doped with complexing agent allylthiourea, rare-earth, and metal ions (cesium and iron). The dopant concentrations were varied between 1 and 3 mol % . Influence of the dopants on the structural perfection was studied using the X-ray diffraction method. Effects of the dopants on the phase transition temperature were examined using the impedance analytical method. The optical properties of the as-grown crystals were studied using a UV spectrophotometer. The surface morphology and the presenting defects were also studied by the chemical etching method and the obtained results have been presented.