论文标题
Y2TI2O7单晶的结构，光学和机械性能
Structural, optical and mechanical properties of Y2Ti2O7 single crystal
论文作者
论文摘要
我们通过光浮动区技术报告了Y2TI2O7单晶的生长。 X射线衍射和拉曼光谱研究证实了晶体的结构质量。 UV-VIS光学研究表明，生长的晶体具有高光学透明度，光条间隙为3.44 eV。首次使用纳米识别测量Y2TI2O7单晶的硬度。发现测得的硬度，压力和散装模量分别为16.4 $ \ pm $ 0.4、321.1 $ \ pm $ 6.9和243.3 $ \ pm $ 5.2 GPA，其高于其多晶的对应蛋白酶及其组成型金属氧化物，Y2O3和Tio2。
We report on the growth of Y2Ti2O7 single crystals by optical floating zone technique. X-ray diffraction and Raman spectroscopy studies confirm the structural quality of the crystal. The UV-Vis optical studies reveal that the grown crystals have a high optical transparency with an optical band gap of 3.44 eV. The hardness of Y2Ti2O7 single crystal is measured for the first time using nanoindentation. The measured hardness, indentation and bulk modulus are found to be 16.4$\pm$0.4, 321.1$\pm$6.9 and 243.3$\pm$5.2 GPa respectively, which are higher than its polycrystalline counterpart and its constituent metal oxides, Y2O3 and TiO2.
