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Periodic arrays of flux-closure domains in ferroelectric thin films with oxide electrodes
Li, S.; Zhu, Y. L.; Wang, Y. J.; Tang, Y. L.; Liu, Y.; Zhang, S. R.; Ma, J. Y.; Ma, X. L.; Zhu, YL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Liaoning, Peoples R China.
2017-07-31
Source PublicationAMER INST PHYSICS
ISSN0003-6951
Volume111Issue:5Pages:-
AbstractFlux-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.; 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.
description.department[li, s. ; zhu, y. l. ; wang, y. j. ; tang, y. l. ; liu, y. ; zhang, s. r. ; ma, j. y. ; ma, x. l.] chinese acad sci, inst met res, shenyang natl lab mat sci, wenhua rd 72, shenyang 110016, liaoning, peoples r china ; [li, s. ; zhang, s. r.] univ chinese acad sci, yuquan rd 19, beijing 100049, peoples r china ; [ma, x. l.] lanzhou univ technol, sch mat sci & engn, langongping rd 287, lanzhou 730050, gansu, peoples r china
Subject AreaPhysics, Applied
Funding OrganizationNational Natural Science Foundation of China [51571197, 51401212, 51231007, 51501194, 51671194]; National Basic Research Program of China [2014CB921002]; Frontier Sciences CAS [QYZDJ-SSW-JSC010]; Youth Innovation Promotion Association CAS [2016177]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79174
Collection中国科学院金属研究所
Corresponding AuthorZhu, YL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
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]. AMER INST PHYSICS,2017,111(5):-.
APA Li, S..,Zhu, Y. L..,Wang, Y. J..,Tang, Y. L..,Liu, Y..,...&Zhu, YL .(2017).Periodic arrays of flux-closure domains in ferroelectric thin films with oxide electrodes.AMER INST PHYSICS,111(5),-.
MLA Li, S.,et al."Periodic arrays of flux-closure domains in ferroelectric thin films with oxide electrodes".AMER INST PHYSICS 111.5(2017):-.
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