Periodic vortex-antivortex pairs in tensile strained PbTiO3 films

doi:10.1063/5.0023871

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	Periodic vortex-antivortex pairs in tensile strained PbTiO3 films
	Chen, Y. T.1,2; Tang, Y. L.1; Zhu, Y. L.1; Wang, Y. J.1; Han, M. J.3; Zou, M. J.1; Feng, Y. P.1; Geng, W. R.1,2; Gong, F. H.1,2; Ma, X. L.1,4
刊名	APPLIED PHYSICS LETTERS
	2020-11-09
卷号	117 期号:19 页码:5
ISSN号	0003-6951
DOI	10.1063/5.0023871
通讯作者	Zhu, Y. L.(ylzhu@imr.ac.cn)
英文摘要	Topological lattices such as vortices are of importance in both scientific research and application potential. Here, we observed periodic vortex-antivortex pairs in PbTiO3/SrTiO3 multilayered films deposited on orthorhombic (110)-oriented GdScO3 by pulsed laser deposition. Domain patterns of the PbTiO3 layers containing topological structures were analyzed in detail by using advanced transmission electron microscopy. It was found that by increasing the PbTiO3 thickness, a/c domains with extra c domains will form in the triangle a domains in pure flux-closure structures. Atomically resolved high-angle annular dark field-scanning TEM imaging demonstrates that this specific domain structure results in vortex-antivortex pairs at the junctions of extra c domains and the original flux-closure structure, forming a periodic vortex-antivortex array throughout the PbTiO3 layer. These results suggest a pathway for designing new topological structures in ferroelectric films.
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	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000594740500001
资助机构	Key Research Program of Frontier Sciences CAS ; National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/141465]
专题	金属研究所_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, Wenhua Rd 72, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Wenhua Rd 72, Shenyang 110016, Peoples R China 3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China 4.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	Chen, Y. T.,Tang, Y. L.,Zhu, Y. L.,et al. Periodic vortex-antivortex pairs in tensile strained PbTiO3 films[J]. APPLIED PHYSICS LETTERS,2020,117(19):5.
APA	Chen, Y. T..,Tang, Y. L..,Zhu, Y. L..,Wang, Y. J..,Han, M. J..,...&Ma, X. L..(2020).Periodic vortex-antivortex pairs in tensile strained PbTiO3 films.APPLIED PHYSICS LETTERS,117(19),5.
MLA	Chen, Y. T.,et al."Periodic vortex-antivortex pairs in tensile strained PbTiO3 films".APPLIED PHYSICS LETTERS 117.19(2020):5.