Periodic arrays of flux-closure domains in ferroelectric thin films with oxide electrodes

doi:10.1063/1.4996232

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	Periodic arrays of flux-closure domains in ferroelectric thin films with oxide electrodes
	Li, S.1,2; Zhu, Y. L.1; Wang, Y. J.1; Tang, Y. L.1; Liu, Y.1; Zhang, S. R.1,2; Ma, J. Y.1; Ma, X. L.1,3
刊名	APPLIED PHYSICS LETTERS
	2017-07-31
卷号	111 期号:5
关键词	Cesium compounds Depolarization Electric fields Electrodes Ferroelectric films Ferroelectric thin films Ferroelectricity Gadolinium compounds High resolution transmission electron microscopy Lanthanum compounds Lead titanate Manganese compounds Oxide films Pulsed laser deposition Ruthenium compounds Strontium compounds Titanium compounds Asymmetric electrodes Bottom electrodes Closure domain structure Depolarization fields Domain configurations Electronic device External electric field Oxide electrodes
ISSN号	0003-6951
DOI	10.1063/1.4996232
英文摘要	Flux-closure domain structures in ferroelectric thin films are considered to have potential applications in electronic devices. It is usually believed that these structures are stabilized by the depolarization field and the contact with electrodes tends to screen the depolarization field and may limit their formation. In this work, the influence of oxide electrodes (SrRuO3 and La0.7Sr0.3MnO3) on the formation of flux-closure domains in PbTiO3 thin films deposited on (110)-oriented GdScO3 substrates by pulsed laser deposition was investigated by Cs-corrected transmission electron microscopy. It is found that periodic flux-closure domain arrays can be stabilized in PbTiO3 films when the top and bottom electrodes are symmetric, while a/c domains appear when asymmetric electrodes are applied. The influence of asymmetric electrodes on the domain configuration is proposed to have a connection with their different work functions and conductivity types. These results are expected to shed light on understanding the nature of flux-closure domains in ferroelectrics and open some research possibilities, such as the evolution of these structures under external electric fields. Published by AIP Publishing.
资助项目	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:000406782300015
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33183]
专题	兰州理工大学材料科学与工程学院
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, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China 3.Lanzhou Univ Technol, Sch Mat Sci & Engn, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, S.,Zhu, Y. L.,Wang, Y. J.,et al. Periodic arrays of flux-closure domains in ferroelectric thin films with oxide electrodes[J]. APPLIED PHYSICS LETTERS,2017,111(5).
APA	Li, S..,Zhu, Y. L..,Wang, Y. J..,Tang, Y. L..,Liu, Y..,...&Ma, X. L..(2017).Periodic arrays of flux-closure domains in ferroelectric thin films with oxide electrodes.APPLIED PHYSICS LETTERS,111(5).
MLA	Li, S.,et al."Periodic arrays of flux-closure domains in ferroelectric thin films with oxide electrodes".APPLIED PHYSICS LETTERS 111.5(2017).