Colossal permittivity and the polarization mechanism of (Mg, Mn) co-doped LaGaO3 ceramics
文献类型：期刊论文
| 作者 | Luo, Tingting1; Liu, Zhifu; Zhang, Faqiang; Li, Yongxiang2 |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2018 |
| 卷号 | 123期号:12 |
| ISSN号 | 0021-8979 |
| DOI | 10.1063/1.5013264 |
| 英文摘要 | Mg and Mn co-doped LaGa0.7-xMgxMn0.3O3 (x = 0, 0.05, 0.10, 0.15) ceramics were prepared by a solid-state reaction method. The electrical properties of the LaGa0.7-xMgxMn0.3O3 ceramics were studied in detail by dielectric spectra, impedance spectra, and I-V characteristic analysis. Colossal permittivity up to 10(4) could be obtained across the frequency range up to 10(4) Hz. The impedance analysis of the co-doped LaGaO3 ceramics indicated that the Mott's variable range hopping (VRH) polarization should be the main origin of colossal permittivity. Mg and Mn co-doping suppressed the formation of Mn3+ thorn and enhanced the VRH polarization, resulting in increased permittivity. Partial localization of electrons by Mg reduced the long-range electron hopping and led to the decrease in dielectric loss. Published by AIP Publishing. |
| 学科主题 | Physics, Applied |
| WOS记录号 | WOS:000428821100020 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | The authors acknowledge the financial support from the 973 Program (2015CB654604 and 2015CB654605), the National Natural Science Foundation of China (51572279), and the International Science and Technology Cooperation Program of China (2015DFA51100). The authors would also like to give special thanks to Professor Guorong Li for his kind help with the dielectric property measurements and valuable discussions. ; The authors acknowledge the financial support from the 973 Program (2015CB654604 and 2015CB654605), the National Natural Science Foundation of China (51572279), and the International Science and Technology Cooperation Program of China (2015DFA51100). The authors would also like to give special thanks to Professor Guorong Li for his kind help with the dielectric property measurements and valuable discussions. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25078]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing, Peoples R China 3.RMIT Univ, Sch Engn, Melbourne, Vic 3001, Australia |
| 推荐引用方式 GB/T 7714 | Luo, Tingting,Liu, Zhifu,Zhang, Faqiang,et al. Colossal permittivity and the polarization mechanism of (Mg, Mn) co-doped LaGaO3 ceramics[J]. JOURNAL OF APPLIED PHYSICS,2018,123(12). |
| APA | Luo, Tingting,Liu, Zhifu,Zhang, Faqiang,&Li, Yongxiang.(2018).Colossal permittivity and the polarization mechanism of (Mg, Mn) co-doped LaGaO3 ceramics.JOURNAL OF APPLIED PHYSICS,123(12). |
| MLA | Luo, Tingting,et al."Colossal permittivity and the polarization mechanism of (Mg, Mn) co-doped LaGaO3 ceramics".JOURNAL OF APPLIED PHYSICS 123.12(2018). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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。