| Pressure-induced phase transitions of multiferroic BiFeO3 |
| |
| 作者姓名： | 张晓丽 吴也 张倩 董俊才 巫翔 刘景 吴自玉 陈栋梁 |
| |
| 作者单位： | 1 Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;;2 Key Laboratory of Orogenic Belts and Crustal Evolution, MOE, School of Earth and Space Sciences, Peking University, Beijing 100871, China;;3 National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China |
| |
| 基金项目： | Supported by National Natural Science Foundation of China （10979060, 11275220） |
| |
| 摘 要： | Pressure-induced phase transitions of multiferroic BiFeO3 have been investigated using synchrotron radiation X-ray diffraction with diamond anvil cell technique at room temperature. Present experimental data clearly show that rhombohedral （R3c） phase of BiFeO3 first transforms to monoclinic （C2/m） phase at 7 GPa, then to orthorhombic （Pnma） phase at 11 GPa, which is consistent with recent theoretical ab initio calculation. However, we observe another peak at 2θ=7° in the pressure range of 5-7 GPa that has not been reported previously. Further analysis reveals that this reflection peak is attributed to the orthorhombic （Pbam） phase, indicating the coexistance of monoclinic phase with orthorhombic phase in low pressure range.
|
| 关 键 词： | BiFeO3 压力诱导相变 X射线衍射仪 铁 正交晶系 压力范围 金刚石压砧 同步辐射 |
| 收稿时间： | 2013-3-13 |
| 修稿时间： | 2013-7-2 |
Pressure-induced phase transitions of multiferroic BiFeO3 |
| |
| ZHANG Xiao-Li,WU Ye,ZHANG Qian,DONG Jun-Cai,WU Xiang,LIU Jing,WU Zi-Yu,CHEN Dong-Liang.Pressure-induced phase transitions of multiferroic BiFeO3[J].High Energy Physics and Nuclear Physics,2013,37(12):109-113. |
| |
| Authors: | ZHANG Xiao-Li WU Ye ZHANG Qian DONG Jun-Cai WU Xiang LIU Jing WU Zi-Yu CHEN Dong-Liang |
| |
| Institution: | [1]Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China [2]Key Laboratory of Orogenic Belts and Crustal Evolution, MOE, School of Earth and Space Sciences, Peking University, Beijing 100871, China [3]National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China |
| |
| Abstract: | BiFeO3, imsitu XRD, phase transitions |
| |
| Keywords: | BiFeO3 imsitu XRD phase transitions |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 C》浏览原始摘要信息 |
| 点击此处可从《中国物理 C》下载免费的PDF全文 |
|
