Nonlinear LiB^IIIC^YI₂ crystals for mid-IR and far-IR: Novel aspects in crystal growth

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• 作者：L.I. Isaenko ; I.G. Vasilyeva
• 关键词：A1. Phase diagrams ; B1. Lithium compounds ; B2. Nonlinear optic crystals
• 刊名：Journal of Crystal Growth
• 出版年：2008
• 期刊代码：49_00220248
• 类别：ch
• 出版时间：April 2008
• 卷：310
• 期：7-9
• 页码：1954-1960
• 文件大小：363 K

摘要

A rapid heating thermal technique with high pressures of inert gas in camera was used to study the T–x diagram of the Li₂C–B₂C₃ (B=In, Ga; C=S, Se) systems in the Li₂C-rich region where melt and vapor are aggressive to any container material. A bounded solubility of two components in a liquid state is likely due to thermal dissociation of the melt into Li₂C and Li_1+xBC₂ (x<0.1) components was found. The compositions of immiscible liquids were determined by a differential dissolution method. The melts quenched sharply from temperatures of the monotectic and the limiting saturation lines were studied. The effect of the melt inhomogeneity on the crystallization process is discussed.