发光学报2018，Vol.39Issue(4)：475-480,6.DOI:10.3788/fgxb20183904.0475
掺铥钨酸镱钾激光晶体结构模拟及振动光谱
Structure Simulation and Vibration Spectra of KTm0.1Yb0.9(WO4)2 Laser Crystal
摘要
Abstract
KTm0.1Yb0.9(WO4)2 laser crystal was grown by the Kyropoulos method. The phase and structure of the crystal were studied using the X-ray single crystal diffraction and X-ray powder diffraction. Combined with the X-ray single crystal diffraction method,the structure model of the crystal was obtained by the diamond crystal graphics soft-ware. It is indicated that the crystal consists of WO6,TmO8/YbO8and KO12groups. The W2O10dimers, which are connected by the single oxygen bridge(WOW), have a formation of the(W2O8)n multiple bands in the direction of parallel to the c axis. TmO8/YbO8 and KO12 are connected with the same vertex,which can form an extension band along the [101] and [110] directions with a two-dimensional structure. X-ray powder diffraction analysis indicates that the crystal belongs to monoclinic system with a space group C2/c. It is verified that as-grown crystal is β-double tungstate with low temperature. The cell parameters,crystal grain size and crystallinity of the crystal were calculated as well. The vibration spectra of the crystal were investigated. The vibration modes and frequencies of infrared and Raman peaks were identified,which could further verify the presence of WO6groups,single oxygen bridges(WOW) and double oxygen bridges(WOOW) in the crystal.关键词
KTm0.1Yb0.9(WO4)2激光晶体/结构模拟/振动光谱Key words
KTm0.1Yb0.9(WO4)2 laser crystal/structure simulation/vibration spectra分类
数理科学引用本文复制引用
毕琳,底晓强,赵建平,李春,刘景和..掺铥钨酸镱钾激光晶体结构模拟及振动光谱[J].发光学报,2018,39(4):475-480,6.基金项目
吉林省科技发展计划(20160414043GH) （20160414043GH）
吉林省教育厅"十三五"科学技术研究项目(2016-379)资助Supported by Jilin Provincial S&T Development Plan Project of China(20160414043GH) （2016-379）
The 13th five-year S&T Research Pro-ject of Jilin Provincial Education Department of China(2016-379) （2016-379）
