Topological polar structures in ferroelectric oxide films | |
Tang, Y. L.2; Zhu, Y. L.1,2; Ma, X. L.2,3 | |
刊名 | JOURNAL OF APPLIED PHYSICS |
2021-05-28 | |
卷号 | 129期号:20 |
关键词 | Ferroelectric films High resolution transmission electron microscopy Magnetic materials Nanotechnology Strain Textures Topology Aberration-corrected Continuous rotation Depolarization fields Dzyaloshinskii-Moriya interaction External strains Ferroelectric oxides Relaxation mechanism Skyrmion lattices |
ISSN号 | 0021-8979 |
DOI | 10.1063/5.0044758 |
英文摘要 | The continuous rotation of electric dipoles, which is inspired by unusual spin textures in magnetic materials, has been envisioned by theoretical modelings in last two decades. Although in electrically polar systems it was thought to be difficult to introduce continuous rotation of electric dipoles since similar Dzyaloshinskii-Moriya interaction like that of ferromagnets is still under study, external strains and interface depolarization fields have been then identified to be critical for rotating electric dipoles in nano-scale oxide films/superlattices. In this Perspective, we will briefly summarize the experimental finding of the newly identified topological polar structures and corresponding properties, such as polar flux-closure, vortex, skyrmion lattice, and meron. The critical importance of microscopy technologies, especially the advanced aberration-corrected transmission electron microscopy with ultra-high spatial resolutions, will be emphasized. Moreover, physical aspects to be addressed in the future, such as the strain maintenance and relaxation mechanisms of polar systems/superlattices, atomic maps of three-dimensional topological polar structures, and flexoelectricity-related properties, will be highlighted and envisioned. |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | AMER INST PHYSICS |
WOS记录号 | WOS:000681696600002 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/149006] |
专题 | 兰州理工大学 |
作者单位 | 1.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China; 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Wenhua Rd 72, Shenyang 110016, Peoples R China; 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Langongping Rd 287, Lanzhou 730050, Peoples R China |
推荐引用方式 GB/T 7714 | Tang, Y. L.,Zhu, Y. L.,Ma, X. L.. Topological polar structures in ferroelectric oxide films[J]. JOURNAL OF APPLIED PHYSICS,2021,129(20). |
APA | Tang, Y. L.,Zhu, Y. L.,&Ma, X. L..(2021).Topological polar structures in ferroelectric oxide films.JOURNAL OF APPLIED PHYSICS,129(20). |
MLA | Tang, Y. L.,et al."Topological polar structures in ferroelectric oxide films".JOURNAL OF APPLIED PHYSICS 129.20(2021). |
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