中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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://WOS:000307438200006
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
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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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