Evolution of flux-closure domain arrays in oxide multilayers with misfit strain

doi:10.1016/j.actamat.2019.04.020

IMR OpenIR

	Evolution of flux-closure domain arrays in oxide multilayers with misfit strain
	Li, S.1,2; Wang, Y. J.1; Zhu, Y. L.1; Tang, Y. L.1; Liu, Y.1; Ma, J. Y.1,2,3; Han, M. J.1,2; Wu, Bo 1,4; Ma, X. L.1,3
通讯作者	Zhu, Y. L.(ylzhu@imr.ac.cn)
	2019-06-01
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	171 页码:176-183
摘要	Ferroelectric flux-closure domains have attracted great attention due to their potentials in high density data storage. For their future applications, it is important to understand their evolution with different factors, such as misfit strain. In this work, a flux-closure domain consisting of a vertical 180 domain wall with two symmetric a domains in both ends ("I" type closure) was observed in nearly unstrained SrTiO3/PbTiO3 multilayers by aberration corrected Transmission Electron Microscopy, which was speculated to be mainly induced by the strong depolarization field near the interface. With the tensile strain increasing, the small a domains in "I" type flux-closures grow gradually and eventually change to the well-known "V" type flux-closures. On the basis of a combination of experimental results and phase field simulations, the phase diagram of the stabilized domain arrays versus the strains in PbTiO3 films are established. These results provide significant information on understanding the formation mechanism of flux-closure domains and shed light on their controlled growth. In addition, it paves a way to reduce the economic cost in their commercial applications because the SrTiO3 substrate is easy to synthesize and much cheaper than scandate substrates. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Ferroelectric film Flux-closure domain Misfit strain Aberration corrected transmission electron microscope Phase field modeling
资助者	National Natural Science Foundation of China ; National Basic Research Program of China ; Key Research Program of Frontier Sciences CAS ; IMR SYNL-T.S. Ke Research Fellowship ; Youth Innovation Promotion Association CAS
DOI	10.1016/j.actamat.2019.04.020
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51571197] ; National Natural Science Foundation of China[51501194] ; National Natural Science Foundation of China[51671194] ; National Basic Research Program of China[2014CB921002] ; Key Research Program of Frontier Sciences CAS[QYZDJ-SSW-JSC010] ; IMR SYNL-T.S. Ke Research Fellowship ; 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:000470046400017
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：22[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/321006/133699
专题	中国科学院金属研究所
通讯作者	Zhu, Y. L.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Li, S.,Wang, Y. J.,Zhu, Y. L.,et al. Evolution of flux-closure domain arrays in oxide multilayers with misfit strain[J]. ACTA MATERIALIA,2019,171:176-183.
APA	Li, S..,Wang, Y. J..,Zhu, Y. L..,Tang, Y. L..,Liu, Y..,...&Ma, X. L..(2019).Evolution of flux-closure domain arrays in oxide multilayers with misfit strain.ACTA MATERIALIA,171,176-183.
MLA	Li, S.,et al."Evolution of flux-closure domain arrays in oxide multilayers with misfit strain".ACTA MATERIALIA 171(2019):176-183.