Ferroelectricity generated by spin-orbit and spin-lattice couplings in multiferroic DyMnO3
文献类型：期刊论文
| 作者 | N. Zhang ; S. Dong ; J. M. Liu |
| 刊名 | Frontiers of Physics
 |
| 出版日期 | 2012 |
| 卷号 | 7期号:4页码:408-417 |
| 关键词 | multiferroics spin-orbit coupling spin-lattice coupling coexistence perovskite homno3 phase |
| ISSN号 | 2095-0462 |
| 中文摘要 | While the ferroelectricity in type-II multiferroic rare-earth manganites is believed to be generated by the inverse Dzyaloshinskii-Moriya (DM) interaction (spin-orbit coupling) associated with the Mn spiral spin order, recent results revealed the strong spin-lattice coupling arising from the Dy-Mn spin interaction in DyMnO3, which may also be an ingredient contributing to the ferroelectricity. In this work, we summarize our recent experiments on this issue by performing a series of rare-earth site nonmagnetic Y and magnetic Ho substitutions at Dy site for DyMnO3. It is demonstrated that the Dy-Mn spin interaction contributes to the ferroelectric polarization through the symmetric exchange striction mechanism (spin-lattice coupling). A coexistence of the spin-orbit coupling and spin-lattice coupling in one compound is confirmed. At the same time, the independent Dy antiferromagnetic spin order at low temperature can be effectively suppressed by the substitutions, beneficial to the polarization enhancement. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60447]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | N. Zhang,S. Dong,J. M. Liu. Ferroelectricity generated by spin-orbit and spin-lattice couplings in multiferroic DyMnO3[J]. Frontiers of Physics,2012,7(4):408-417. |
| APA | N. Zhang,S. Dong,&J. M. Liu.(2012).Ferroelectricity generated by spin-orbit and spin-lattice couplings in multiferroic DyMnO3.Frontiers of Physics,7(4),408-417. |
| MLA | N. Zhang,et al."Ferroelectricity generated by spin-orbit and spin-lattice couplings in multiferroic DyMnO3".Frontiers of Physics 7.4(2012):408-417. |
入库方式： OAI收割
来源：金属研究所
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