Structural transition of BaF2 nanocrystals under high pressure
文献类型：期刊论文
| 作者 | Wang, JS; Ma, CL; Zhu, HY; Wu, XX; Li, DM; Cong, RD; Liu, J; Shi, R; Cui, QL;刘景 |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2013 |
| 卷号 | 37期号:8页码:88001 |
| 关键词 | nanocrystals BaF2 synchrotron radiation phase transition |
| 英文摘要 | The structural transition of BaF2 nanocrystals is studied by in situ high pressure synchrotron radiation X-ray diffraction measurements up to about 21.2 GPa at ambient temperature. Two phase transformations were observed at 5.8 and 14.4 GPa, and the two high pressure phases are identified as orthorhombic (Pnma) phase and hexagonal (P6(3)/mmc) phase by Rietveld refinement. Upon decompression, the alpha-PbCl2-type metastable phase is retained when the pressure is released. Two phase transformations of the BaF2 nanocrystals are higher than that in bulk BaF2. It is proposed that the size effects are found to influence the BaF2 nanocrystals high-pressure behaviors and the surface energy plays a significant role in the structural stability. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000322937800016 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224761]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Wang, JS,Ma, CL,Zhu, HY,et al. Structural transition of BaF2 nanocrystals under high pressure[J]. CHINESE PHYSICS C,2013,37(8):88001. |
| APA | Wang, JS.,Ma, CL.,Zhu, HY.,Wu, XX.,Li, DM.,...&Cui, QL；刘景.(2013).Structural transition of BaF2 nanocrystals under high pressure.CHINESE PHYSICS C,37(8),88001. |
| MLA | Wang, JS,et al."Structural transition of BaF2 nanocrystals under high pressure".CHINESE PHYSICS C 37.8(2013):88001. |
入库方式： OAI收割
来源：高能物理研究所
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