High-pressure x-ray diffraction and Raman spectroscopy of phase transitions in Sm2O3
文献类型：期刊论文
| 作者 | Jiang, Sheng ; Liu, Jing ; Lin, Chuanlong ; Li, Xiaodong ; Li, Yanchun |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2013 |
| 卷号 | 113期号:11 |
| ISSN号 | 0021-8979 |
| 英文摘要 | The structural phase transitions in Sm2O3 with mixed phases of cubic and monoclinic as starting material were studied by in situ high-pressure synchrotron angle dispersive x-ray diffraction and Raman scattering measurements up to 40.1 GPa and 41.0 GPa, respectively. The x-ray diffraction data indicate that the monoclinic and cubic phases begin to transform to a hexagonal phase at 2.5 and 4.2 GPa, respectively. The hexagonal phase is stable up to at least 40.1 GPa and could not be quenched to ambient conditions. These phase transitions have also been confirmed by Raman spectroscopy. A third-order Birch-Murnaghan fit based on the observed pressure-volume data yields zero pressure bulk moduli B-0 = 149(2), 153(7), and 155(5) GPa for cubic, monoclinic, and hexagonal phases, respectively, when their first pressure derivatives (B'(0)) were fixed as 4. The pressure coefficients of Raman peaks and the mode Gruneisen parameters of different Raman modes were also obtained. Coupled with previous results, we conclude that the transition pressure of medium rare-earth sesquioxides from the cubic and monoclinic to the hexagonal phase increase with the decreasing of the cation radius. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4795504] |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316545200016 |
| 公开日期 | 2014-06-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/13770]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Jiang, Sheng,Liu, Jing,Lin, Chuanlong,et al. High-pressure x-ray diffraction and Raman spectroscopy of phase transitions in Sm2O3[J]. JOURNAL OF APPLIED PHYSICS,2013,113(11). |
| APA | Jiang, Sheng,Liu, Jing,Lin, Chuanlong,Li, Xiaodong,&Li, Yanchun.(2013).High-pressure x-ray diffraction and Raman spectroscopy of phase transitions in Sm2O3.JOURNAL OF APPLIED PHYSICS,113(11). |
| MLA | Jiang, Sheng,et al."High-pressure x-ray diffraction and Raman spectroscopy of phase transitions in Sm2O3".JOURNAL OF APPLIED PHYSICS 113.11(2013). |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。