| 结合会聚束电子衍射和高分辨电子显微术来测定十四铌酸锂的结构 |
| |
| 引用本文： | 冯国光,杨翠英,周玉清,唐棣生.结合会聚束电子衍射和高分辨电子显微术来测定十四铌酸锂的结构[J].物理学报,1984,33(11):1581-1585. |
| |
| 作者姓名： | 冯国光 杨翠英 周玉清 唐棣生 |
| |
| 作者单位： | 中国科学院物理研究所 |
| |
| 摘 要： | 我们在一台有0.4nm点分辨率的分析透射电子显微镜上,结合会聚束电子衍射(CBED)和高分辨电子显微术(HREM)研究了十四铌酸锂的结构。CBED结果证明十四铌酸锂的空间群是C2/m,HREM结构象表明十四铌酸锂是由4×4氧八面体方块组成,方块中3×3通道及八面体中心的金属原子可以清楚地看到,其距离是0.38nm。结合CBED和HREM来做结构分析是发展电子晶体学的重要的一步。
关键词：
|
| 收稿时间： | 1983-11-29 |
STRUCTURAL ANALYSIS OF Li2O·14Nb2O5 BY COMBINED CONVERGENT-BEAM ELECTRON DIFFRACTION AND HIGH RESOLUTION ELECTRON MICROSCOPY |
| |
| FENG GUO-GUANG,YANG CUI-YING,ZHOU YU-QING and TANG DI-SHENG.STRUCTURAL ANALYSIS OF Li2O·14Nb2O5 BY COMBINED CONVERGENT-BEAM ELECTRON DIFFRACTION AND HIGH RESOLUTION ELECTRON MICROSCOPY[J].Acta Physica Sinica,1984,33(11):1581-1585. |
| |
| Authors: | FENG GUO-GUANG YANG CUI-YING ZHOU YU-QING and TANG DI-SHENG |
| |
| Abstract: | Structurai analysis of Li2O·14Nb2O5 has been carried out by combined convergent-beam electron diffraction (CBED) and high resolution electron microscopy (HREM) in an analytical electron microscope with a point resolution of 0.4 nm. The space group C2/m is confirmed by CBED. HREM structure image shows that Li2O·14Nb2O5 is made up of 4×4 blocks of oxygen octahedrons The 3×3 channels within the 4×4 blocks and the metal atoms at the centres of the octahedrons which are 0.38 nm apart are clearly resolved. Combined CBED and HREM for structural analysis is an important development in electron crystallography. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
| 点击此处可从《物理学报》下载免费的PDF全文 |
