| Structure, dielectric and magnetodielectric properties of Bi1-xGdxFeO3 Ceramics | |
| Li Jing-Bo1; Rao Guang-Hui1; Xiao Yin-Guo2; Luo Jun1; Liu Guang-Yao1; Chen Jing-Ran1; Liang Jing-Kui1,3 | |
| 通讯作者 | Li Jing-Bo(jbli@aphy.iphy.ac.cn) |
| 2010-10-01 | |
| 发表期刊 | CHINESE PHYSICS B
 |
| ISSN | 1674-1056 |
| 卷号 | 19期号:10页码:7 |
| 摘要 | Different magnetodielectric effects were observed in Bi1-xGdxFeO3 ceramics depending on gadolinium content. A positive one was observed in the samples with x <= 0.10 at 295 K and 16 K, and a negative one in the sample with x = 0.4 at 16 K. Structure analysis by x-ray diffraction (XRD) reveals that the samples crystallize in the R3c structure (ferroelectrics) for x < 0.08 and in the Pbnm structure (paraelectrics) for x >= 0 : 3 at room temperature. Temperature-dependent dielectric response and x-ray diffraction confirm the occurrence of a structural transition in the Pbnm phase at low temperature for the samples with x <= 0.4. While the positive magnetodielectric effects can be attributed to a coupling of magnetic and crystallographic structures of the R 3 c phase, the observed negative magnetodielectric effect in the Pbnm phase can be associated with a low-temperature modification of the Pbnm structure. The observed dual-signed magnetodielectric effects suggest that the Bi1-xGdxFeO3 oxides are a good prototype for understanding the magnetodielectric coupling mechanism in this kind of materials. |
| 关键词 | multiferroic magnetodielectric effect x-ray diffraction Bi1-xGdxFeO3 ceramics |
| 资助者 | National Basic Research Program of China ; National Natural Science Foundation of China |
| DOI | 10.1088/1674-1056/19/10/107505 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Basic Research Program of China[2007CB925003] ; National Natural Science Foundation of China[50872148] |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| WOS记录号 | WOS:000282923600087 |
| 出版者 | IOP PUBLISHING LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/102228 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Li Jing-Bo |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China 2.Forschungszentrum Julich, Inst Festkoerperforsch, D-52425 Julich, Germany 3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Jing-Bo,Rao Guang-Hui,Xiao Yin-Guo,et al. Structure, dielectric and magnetodielectric properties of Bi1-xGdxFeO3 Ceramics[J]. CHINESE PHYSICS B,2010,19(10):7. |
| APA | Li Jing-Bo.,Rao Guang-Hui.,Xiao Yin-Guo.,Luo Jun.,Liu Guang-Yao.,...&Liang Jing-Kui.(2010).Structure, dielectric and magnetodielectric properties of Bi1-xGdxFeO3 Ceramics.CHINESE PHYSICS B,19(10),7. |
| MLA | Li Jing-Bo,et al."Structure, dielectric and magnetodielectric properties of Bi1-xGdxFeO3 Ceramics".CHINESE PHYSICS B 19.10(2010):7. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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。
修改评论