Entangled polarizations in ferroelectrics: A focused review of polar topologies

doi:10.1016/j.actamat.2022.118485

IMR OpenIR

	Entangled polarizations in ferroelectrics: A focused review of polar topologies
	Wang, Y. J.1; Tang, Y. L.1; Zhu, Y. L.1,2; Ma, X. L.1,2,3
通讯作者	Ma, X. L.(xlma@imr.ac.cn)
	2023-01-15
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	243 页码:37
摘要	Ferroelectric crystals feature asymmetric or polar structures that are switchable under an external elec-tric field, holding promise for information storage. Nanoscale ferroelectrics might exhibit various exotic domain configurations and polar topologies, such as full flux-closure, vortex, skyrmion, and meron. These topological domains were theoretically switchable and may give rise to an unusually high density of memory bits. They would also undergo unusual phase transitions and form hidden, collective polar topo-logical states under external stimulations. Similar domains and spin topologies are well known in fer-romagnetic materials, and their topological properties and dynamics are under intensive investigation. However, in ferroelectric materials, the coupling of polarizations to spontaneous strains would be so pro-nounced that the formations of polar topologies were believed to be impossible. How to stabilize the polar topologies in ferroelectrics, especially in nanoscale ferroelectrics, was known as a big challenge. In this overview, we summarize the recent progress in polar topologies in ferroelectric oxides. We start from a review the discovery of polar topologies, including flux-closure quadrant, vortex, bubble, skyrmion, meron lattice, polar waves, and center-type domains. We also focus on the effects of mechani-cal and electrical boundary conditions and sample size on the formation of topological structures. In the meanwhile, we emphasize the use of aberration-corrected transmission electron microscope which en-ables to visualize the ion displacement at a sub-Angstrom resolution in real space. And at the end, we envision several aspects to be considered in the future, such as imaging three dimensional (3D) atomic morphology of the topological polar structures, exploring novel polar topologies in other possible sys-tems, and addressing the coupling of polar topologies with flexoelectricity by a combination of quantita-tive transmission electron microscopy and relevant theoretical approaches. (c) 2022 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Polar topologies Ferroelectric films Aberration-corrected transmission electron microscopy Piezoresponse force microscopy Phase-field simulations
资助者	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences CAS ; Shenyang National Laboratory for Materials Science ; Youth Innovation Promotion Association CAS ; Scientific Instrument Developing Project of CAS
DOI	10.1016/j.actamat.2022.118485
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52122101] ; National Natural Science Foundation of China[51971223] ; National Natural Science Foundation of China[51922100] ; Key Research Program of Frontier Sciences CAS[QYZDJ-SSW-JSC010] ; Shenyang National Laboratory for Materials Science[L2019R06] ; Shenyang National Laboratory for Materials Science[L2019R08] ; Shenyang National Laboratory for Materials Science[L2019F01] ; Shenyang National Laboratory for Materials Science[L2019F13] ; Youth Innovation Promotion Association CAS[2021187] ; Youth Innovation Promotion Association CAS[Y202048] ; Scientific Instrument Developing Project of CAS[YJKYYQ20200066]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000899523800001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/175805
专题	中国科学院金属研究所
通讯作者	Ma, X. L.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China 2.Songshan Lake Mat Lab, Bay Area Ctr Electron Microscopy, Dongguan 523808, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Y. J.,Tang, Y. L.,Zhu, Y. L.,et al. Entangled polarizations in ferroelectrics: A focused review of polar topologies[J]. ACTA MATERIALIA,2023,243:37.
APA	Wang, Y. J.,Tang, Y. L.,Zhu, Y. L.,&Ma, X. L..(2023).Entangled polarizations in ferroelectrics: A focused review of polar topologies.ACTA MATERIALIA,243,37.
MLA	Wang, Y. J.,et al."Entangled polarizations in ferroelectrics: A focused review of polar topologies".ACTA MATERIALIA 243(2023):37.