The crystal structures and physical properties of the solid solution compound Ba5Y8-xMn4O21-1.5x (x=0, 1)
文献类型：期刊论文
| 作者 | Gao, QQ ; Li, JB ; Song, SJ ; Rao, GH ; Luo, J ; Liu, GY ; Liang, JK |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2012 |
| 卷号 | 21期号:6 |
| 关键词 | EFFECTIVE IONIC-RADII |
| ISSN号 | 1674-1056 |
| 通讯作者 | Li, JB (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter 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 [50872148, 51072225]; National Basic Research Program of China [2007CB925003] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/44966]  |
| 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 | Gao, QQ,Li, JB,Song, SJ,et al. The crystal structures and physical properties of the solid solution compound Ba5Y8-xMn4O21-1.5x (x=0, 1)[J]. CHINESE PHYSICS B,2012,21(6). |
| APA | Gao, QQ.,Li, JB.,Song, SJ.,Rao, GH.,Luo, J.,...&Liang, JK.(2012).The crystal structures and physical properties of the solid solution compound Ba5Y8-xMn4O21-1.5x (x=0, 1).CHINESE PHYSICS B,21(6). |
| MLA | Gao, QQ,et al."The crystal structures and physical properties of the solid solution compound Ba5Y8-xMn4O21-1.5x (x=0, 1)".CHINESE PHYSICS B 21.6(2012). |
入库方式： OAI收割
来源：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。