Oxygen octahedral coupling mediated ferroelectric-antiferroelectric phase transition based on domain wall engineering

doi:10.1016/j.actamat.2020.08.007

IMR OpenIR

	Oxygen octahedral coupling mediated ferroelectric-antiferroelectric phase transition based on domain wall engineering
	Geng, W. R.1,2; Guo, X. W.1,2; Zhu, Y. L.1; Wang, Y. J.1; Tang, Y. L.1; Han, M. J.1,5; Feng, Y. P.1,3; Zou, M. J.1,2; Wu, B.1,2; Ma, J. Y.1,2,4; Hu, W. T.1,2; Ma, X. L.1,4
通讯作者	Zhu, Y. L.(ylzhu@imr.ac.cn) ; Tang, Y. L.(yltang@imr.ac.cn) ; Ma, X. L.(xlma@imr.ac.cn)
	2020-10-01
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	198 页码:145-152
摘要	Exotic domain-wall phenomena make ferroelectrics the candidates for nanoelectronics. The local symmetry and structure anomalies at domain walls have raised interest in the unusual functionalities, such as domain wall chirality and conductivity. Especially, the spontaneous lattice distortion and symmetry breaking at domain walls activate them as the location of structural transformation. However, the routes to achieve ferroelectric-antiferroelectric phase transition via ferroelectric domain walls remain challenging, which are important to develop materials for energy storage and conversion. Here, we have observed stepwise antiferroelectric phase transition in strained pure BiFeO3 ultrathin films derived from ferroelectric domain walls. Aberration-corrected transmission electron microscopy observation reveals that the resultant phase transition is mediated by dense 180 degrees domain walls via providing the antiparallel cation displacement, cooperating with the enhanced interfacial oxygen octahedral clamping. First-principles calculations further confirm the critical role of interfacial oxygen octahedral coupling during this transition. These findings report an alternative route for antiferroelectric phase transition. Besides, our results provide fresh insights into functionalities of ferroelectric domain walls and open a venue for developing energy-storage materials based on domain engineering. (c) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Ferroelectric films Ferroelectric domain walls Antiferroelectric phase transition Oxygen octahedral coupling Scanning transmission electron microscopy
资助者	Key Research Program of Frontier Sciences CAS ; National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science ; Youth Innovation Promotion Association CAS
DOI	10.1016/j.actamat.2020.08.007
收录类别	SCI
语种	英语
资助项目	Key Research Program of Frontier Sciences CAS[QYZDJ-SSW-JSC010] ; National Natural Science Foundation of China[51971223] ; National Natural Science Foundation of China[51671194] ; National Natural Science Foundation of China[51922100] ; 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[2016177]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000567798300002
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：16[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/321006/140446
专题	中国科学院金属研究所
通讯作者	Zhu, Y. L.; Tang, Y. L.; 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.Univ Sci & Technol China, Jinzhai Rd 96, Hefei 230026, Peoples R China 3.Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China 4.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Langongping Rd 287, Lanzhou 730050, Peoples R China 5.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Geng, W. R.,Guo, X. W.,Zhu, Y. L.,et al. Oxygen octahedral coupling mediated ferroelectric-antiferroelectric phase transition based on domain wall engineering[J]. ACTA MATERIALIA,2020,198:145-152.
APA	Geng, W. R..,Guo, X. W..,Zhu, Y. L..,Wang, Y. J..,Tang, Y. L..,...&Ma, X. L..(2020).Oxygen octahedral coupling mediated ferroelectric-antiferroelectric phase transition based on domain wall engineering.ACTA MATERIALIA,198,145-152.
MLA	Geng, W. R.,et al."Oxygen octahedral coupling mediated ferroelectric-antiferroelectric phase transition based on domain wall engineering".ACTA MATERIALIA 198(2020):145-152.