Topological polar structures in ferroelectric oxide films

doi:10.1063/5.0044758

	Topological polar structures in ferroelectric oxide films
	Tang, Y. L.1; Zhu, Y. L.1,2; Ma, X. L.1,3
	2021-05-28
发表期刊	JOURNAL OF APPLIED PHYSICS
ISSN	0021-8979
卷号	129 期号:20
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.
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
DOI	10.1063/5.0044758
收录类别	EI ; SCOPUS ; SCIE
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000681696600002
出版者	AMER INST PHYSICS
EI入藏号	20212210444821
EI主题词	Oxide films
EI分类号	708.1 Dielectric Materials - 708.4 Magnetic Materials - 741.3 Optical Devices and Systems - 761 Nanotechnology - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 951 Materials Science
来源库	WOS
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/149006
专题	兰州理工大学
通讯作者	Ma, X. L.
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Wenhua Rd 72, Shenyang 110016, Peoples R China; 2.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China; 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Langongping Rd 287, Lanzhou 730050, Peoples R China
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室
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).