Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO3 single crystal by Brillouin scattering
文献类型：期刊论文
| 作者 | He, XK ; Zeng, LB ; Wu, QS ; Zhang, LY ; Zhu, K ; Liu, YL |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2012 |
| 卷号 | 21期号:6 |
| 关键词 | BATIO3 THIN-FILMS TETRAGONAL BATIO3 2ND-HARMONIC GENERATION DEPENDENCE CERIUM |
| ISSN号 | 1674-1056 |
| 通讯作者 | Zhang, LY: Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | New oxometallides with the formula Ba5Y8-xMn4O21-1.5x (x = 0, 1) are prepared through an atmosphere-controlled solid-state reaction. Two single-phase samples with Ba/Y/Mn atomic ratios 5/8/4 (Y8) and 5/7/4 (Y7) are obtained. The crystal structures and the physical properties of the compounds are investigated by X-ray powder diffraction, magnetization, conductivity, and dielectricity measurements. The Ba5Y8-xMn4O21-1.5x compound is demonstrated to be a Y-deficient solid solution. The solid solution compound Ba5Y8-xMn4O21-1.5x crystallizes into tetragonal symmetry with the space group I4/m. Detailed structure analysis by Rietveld refinement of the X-ray powder diffraction data reveals that the Y vacancies occur preferentially at the Y(2) site. Thermal magnetization measurements indicate the presence of antiferromagnetic interaction between Mn ions in the compounds, and temperature-dependent resistivity measurements show that insulator semiconductor transitions occur around 175 K and 170 K for the Y8 and Y7 samples, respectively. Strong frequency dependences of the dielectric constant are observed above similar to 175 K for the two compounds. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10874236, 60808010] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/35827]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | He, XK,Zeng, LB,Wu, QS,et al. Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO3 single crystal by Brillouin scattering[J]. CHINESE PHYSICS B,2012,21(6). |
| APA | He, XK,Zeng, LB,Wu, QS,Zhang, LY,Zhu, K,&Liu, YL.(2012).Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO3 single crystal by Brillouin scattering.CHINESE PHYSICS B,21(6). |
| MLA | He, XK,et al."Determination of elastic, piezoelectric, and dielectric constants of an R:BaTiO3 single crystal by Brillouin scattering".CHINESE PHYSICS B 21.6(2012). |
入库方式： OAI收割
来源：物理研究所
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