Room-temperature ferroelectric polarization in multiferroic BiMnO3
文献类型：期刊论文
| 作者 | Chi, ZH ; Yang, H ; Feng, SM ; Li, FY ; Yu, RC ; Jin, CQ |
| 刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| 出版日期 | 2007 |
| 卷号 | 310期号:2页码:E358 |
| ISSN号 | 0304-8853 |
| 中文摘要 | Single-phase multiferroic BiMnO3 ceramic was synthesized via high-pressure and high-temperature solid-state reaction. Microstructure modification accompanied by emergence of superlattice due to electron-beam irradiation was observed wherein by means of electron diffraction (ED) combined with high-resolution transmission electron microscopy (HRTEM). It was clearly evidenced that the well-established C2 monoclinic substructure (1) of BiMnO3 is metastable and prone to transform into a new pseudo-cubic superstructure (I*) with larger unit cell and higher symmetry. Magnetic characterization manifesting a unique ferromagnetic phase transition at 103 K has corroborated our speculation that as-prepared BiMnO3 ceramic is free of polymorphism at room temperature. Weak ferromagnetism characterized by a well-saturated ferromagnetic hysteresis loop was manifested in the bulk BMO with Curie temperature T-c similar to 105 K. Modestly saturated ferroelectric hysteresis loops were observed at room temperature. In light of comprehensive evaluation, we can conclude the synthetic BiMnO3 ceramic displays ferromagnetic and ferroelectric ordering simultaneously, i.e. ferroelectromagnetism below its ferromagnetic Curie temperature T-M similar to 105 K. (c) 2006 Published by Elsevier B.V. |
| 收录类别 | SCI |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52255]  |
| 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 | Chi, ZH,Yang, H,Feng, SM,et al. Room-temperature ferroelectric polarization in multiferroic BiMnO3[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2007,310(2):E358. |
| APA | Chi, ZH,Yang, H,Feng, SM,Li, FY,Yu, RC,&Jin, CQ.(2007).Room-temperature ferroelectric polarization in multiferroic BiMnO3.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,310(2),E358. |
| MLA | Chi, ZH,et al."Room-temperature ferroelectric polarization in multiferroic BiMnO3".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 310.2(2007):E358. |
入库方式： OAI收割
来源：物理研究所
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