Relationship between negative thermal expansion and lattice dynamics in a tetragonal PbTiO3-Bi(Mg1/2Ti1/2)O-3 perovskite single crystal | |
Jiang, Kai1,2; Zhang, Peng1; Zhang, Jinzhong1; Xu, Guisheng3; Li, Wenwu1; Hu, Zhigao1; Chu, Junhao1 | |
刊名 | RSC ADVANCES |
2016 | |
卷号 | 6期号:4页码:3159-3164 |
英文摘要 | A range of compelling information on the thermal expansion behavior and lattice dynamics of a novel ferroelectric perovskite-type 0.62PbTiO(3)-0.38Bi(Mg1/2Ti1/2)O-3 single crystal has been revealed by means of temperature-dependent X-ray diffraction and polarized Raman scattering. X-ray diffraction analysis suggests a strong ferroelectricity and structural change (tetragonal to cubic) upon heating. The A(1)(1TO) soft mode, associated with the order parameter spontaneous polarization displacement, abnormally shifts downward and vanished, indicating the change in polar nanoregions and phase transition. Both the temperature dependent unit cell volume and frequency of the soft mode confirm the correlation between spontaneous polarization and negative thermal expansion. The experimental evidence of spontaneous volume ferroelectrostriction will further help in understanding the relationship between the structure and optical properties of perovskite-type ferroelectric oxides. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Chemistry, Multidisciplinary |
研究领域[WOS] | Chemistry |
关键词[WOS] | CERAMICS ; TEMPERATURE ; SYSTEM ; FERROELECTRICITY ; MICROSTRUCTURE ; PROGRESS ; PBTIO3 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000368193500073 |
内容类型 | 期刊论文 |
源URL | [http://ir.sic.ac.cn/handle/331005/23278] |
专题 | 上海硅酸盐研究所_人工晶体研究中心_期刊论文 |
作者单位 | 1.E China Normal Univ, Dept Elect Engn, Shanghai 200241, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, Shanghai 200083, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Adv Inorgan Mat, Shanghai 201899, Peoples R China |
推荐引用方式 GB/T 7714 | Jiang, Kai,Zhang, Peng,Zhang, Jinzhong,et al. Relationship between negative thermal expansion and lattice dynamics in a tetragonal PbTiO3-Bi(Mg1/2Ti1/2)O-3 perovskite single crystal[J]. RSC ADVANCES,2016,6(4):3159-3164. |
APA | Jiang, Kai.,Zhang, Peng.,Zhang, Jinzhong.,Xu, Guisheng.,Li, Wenwu.,...&Chu, Junhao.(2016).Relationship between negative thermal expansion and lattice dynamics in a tetragonal PbTiO3-Bi(Mg1/2Ti1/2)O-3 perovskite single crystal.RSC ADVANCES,6(4),3159-3164. |
MLA | Jiang, Kai,et al."Relationship between negative thermal expansion and lattice dynamics in a tetragonal PbTiO3-Bi(Mg1/2Ti1/2)O-3 perovskite single crystal".RSC ADVANCES 6.4(2016):3159-3164. |
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