-
本文用会聚束电子衍射方法测定了我们生长的新晶体LiZnTa3O9和LiCaTa3O9的对称性,得出LiZnTa3O9晶体属三方晶系,点阵参数a=0.557nm,a=56.12°,点群为3m,空间群为R3c。LiCaTa3O9晶体属四方晶系,点阵参数a=0.778nm,c=0.783nm,点群为4/mmm。Symmetry determination by CBED has been carried out for LiZnTa3O9 and LiGaTa3O9 crystals, which were first grown in our laboratory, LiZnTa3O9 is rhombohedral with lattice parameters, a=0.557 nm, a=56.12°,The point group is 3m and the space group is R3c. LiCaTa3O9 is tetragonal with lattice parameters a=0.778 nm, c=0.783nm. The point group is 4/mmm.
计量
- 文章访问数: 7135
- PDF下载量: 472
- 被引次数: 0