| 镨掺杂铁酸铋粉晶的结构和磁性研究 |
| |
| 引用本文： | 张静,吴玉洁,游泳,等.镨掺杂铁酸铋粉晶的结构和磁性研究[J].广东化工,2014(7):49-50. |
| |
| 作者姓名： | 张静 吴玉洁 游泳 等 |
| |
| 作者单位： | [1]北京理工大学珠海学院数理学院,广东珠海519088 [2]广州大学物理电子工程学院,广东广州510006 |
| |
| 摘 要： | Pr掺杂的BiFeO3粉晶是由溶胶凝胶方法制备的,掺杂浓度为0≤x≤0.5.分别用X光衍射和综合物性测量系统对Bi1-x Prx FeO3粉晶样品的结构和磁性进行了测量和分析。分析结果表明,Pr掺杂与其他稀土元素掺杂明显不同.随着Pr掺杂量的增加,母体BiFeO3的结构由菱形R3c相变为正交Pnma相的过程中,出现了稳定的PbZrO3型正交Pbam过渡相.另外,随着掺杂浓度的增大,Bi1-x Prx FeO3的磁性逐渐增强,剩余磁化强度Mr在相变边界处有最大值,并且在进入Pnma相后逐渐减小。
|
| 关 键 词： | 多铁材料 结构相变 磁化强度 |
Structure and Magnetization Research on Pr doped BiFeO3 Powders |
| |
| Jing Zhang,Wu Yujie,You Yong,Hu Yij,Deng JianjieI,Zhang Guocai.Structure and Magnetization Research on Pr doped BiFeO3 Powders[J].Guangdong Chemical Industry,2014(7):49-50. |
| |
| Authors: | Jing Zhang Wu Yujie You Yong Hu Yij Deng JianjieI Zhang Guocai |
| |
| Affiliation: | 1 (1. School of Mathematics and Physics, Beijing Institute of Technology, Zhuhai 5190881 2. School of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, China) |
| |
| Abstract: | We have successfully synthesized the single phase Bi1-xPrxFeO3 （0≤x≤0.5） powders by the modified sot-gel method, and studied by combing the x-ray diffraction and physical properties measurement system measurements. It differs from substitutions of other rare-earth ions, there is a stable transitional phase of PbZrO3-Iike Pbam existing between the R3c-Pnma phase transition with the increase of Pr doped concentration. The magnetization of Bi1-xPrxFeO3 samples increases gradually with increasing Pr substituted concentration x, however, an inverse behavior occurs after passing a maximum across the phase boundary. |
| |
| Keywords: | multiferroic material： structural transformation magnetization |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
