Abstract—

We have studied and optimized conditions for spontaneous flux growth of TbCr₃(BO₃)₄ crystals. Phase relations in the pseudoternary system TbCr₃(BO₃)₄–K₂Mo₃O₁₀–B₂O₃ have been studied in the temperature range 900–1130°C and the single-phase terbium chromium borate crystallization field has been mapped out. It has been shown that increasing the TbCr₃(BO₃)₄ content of the starting high-temperature solution leads to a rhombohedral-to-monoclinic phase transition. Using K₂Mo₃O₁₀-based high-temperature solutions, we have grown single-phase TbCr₃(BO₃)₄ single crystals or crystals in which the rhombohedral phase (sp. gr. R32) significantly prevails over the monoclinic phase (sp. gr. C2/c). The grown crystals have been characterized by X-ray diffraction techniques, IR spectroscopy, and magnetic measurements.

中文翻译：

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TbCr 3（BO 3）4晶体的生长，光谱和磁性

摘要-

我们已经研究和优化了TbCr ₃（BO ₃）₄晶体自发生长的条件。研究了三元体系TbCr ₃（BO ₃）₄ –K ₂ Mo ₃ O ₁₀ –B ₂ O ₃在900–1130°C的温度范围内的相关系，并绘制了单相硼酸chromium铬的结晶场出来。已经显示出增加起始高温溶液中的TbCr ₃（BO ₃）₄含量导致菱形向单斜晶相转变。使用K ₂沫₃ ø ₁₀基高温解决方案，我们已经长大的单相TBCR ₃（BO ₃）_4个单晶或晶体，其中所述菱形相（比重= - [R 32）显著压倒单斜晶相（SP。 gr C 2 / c）。生长的晶体已经通过X射线衍射技术，红外光谱和磁测量进行了表征。