Two noncentrosymmetric orthophosphate crystals, YSr₃(PO₄)₃ and YBa₃(PO₄)₃, with melting points over 1800 °C have been grown by using the Czochralski technique. The YSr₃(PO₄)₃ and YBa₃(PO₄)₃ crystals were determined to possess cubic symmetry with a space group of I4̅3d. The cell parameters were determined tobe a = b = c = 10.081(9) Å, V = 1024.6(3) ų, and Z = 4 for YSr₃(PO₄)₃; and a = b = c = 10.452(2) Å, V = 1141.9(7) ų, and Z = 4 for YBa₃(PO₄)₃ crystal. Both the YSr₃(PO₄)₃ and YBa₃(PO₄)₃ crystals were found to show disordered occupations between Sr (or Ba) and Y. Thermal properties were also characterized, where the thermal conductivity values were 1.53 W·m^–1·K^–1 and 1.39 W·m^–1·K^–1. The YSr₃(PO₄)₃ and YBa₃(PO₄)₃ crystals were confirmed to possess a broad transmittance range with an optical absorption edge shorter than 190 nm. In addition, the laser-damage thresholds of YSr₃(PO₄)₃ and YBa₃(PO₄)₃ crystals were evaluated at wavelengths of 1064 nm using a 10 ns Nd:YAG laser and found to be on the order of 1150 MW/cm² and 680 MW/cm², respectively. The YSr₃(PO₄)₃ and YBa₃(PO₄)₃ single crystals were shown to be good multifunctional crystals for potential opto-electric applications.

中文翻译：

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非中心对称正磷酸盐YM ₃（PO ₄）₃（M = Sr，Ba）晶体：单晶生长，结构和性质

使用切克劳斯基技术已经生长了两个熔点超过1800°C的非中心对称正磷酸盐晶体YSr ₃（PO ₄）₃和YBa ₃（PO ₄）₃。的YSR ₃（PO ₄）₃和的YBa ₃（PO ₄）_3个，测定结晶，具有立方对称空间群的余43 d。晶胞参数确定砥一个= b = c ^ = 10.081（9）埃，V = 1024.6（3）³且对于YSr ₃（PO ₄）₃为Z = 4 ; 和一个= b = c ^ = 10.452（2）埃，V = 1141.9（7）³，和ž = 4的YBa ₃（PO ₄）₃晶体。发现YSr ₃（PO ₄）₃和YBa ₃（PO ₄）₃晶体均显示出Sr（或Ba）和Y之间的无序占有。还表征了热性能，其导热系数为1.53 W·m ^{– 1} ·K^–1和1.39 W·m ^–1 ·K ^–1。确认了YSr ₃（PO ₄）₃和YBa ₃（PO ₄）₃晶体具有宽的透射范围，并且光吸收边缘短于190nm。此外，使用10 ns Nd：YAG激光器在1064 nm波长下评估了YSr ₃（PO ₄）₃和YBa ₃（PO ₄）₃晶体的激光损伤阈值，发现其约为1150 MW / cm ²和680 MW / cm ²。YSr ₃（PO ₄）₃和YBa ₃（PO ₄）₃单晶被证明是用于潜在光电应用的良好多功能晶体。