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Misfit strain relaxations of (101)-oriented ferroelectric PbTiO3/(La, Sr)(Al, Ta)O-3 thin film systems
Feng, Yanpeng1,2; Tang, Yunlong1; Zhu, Yinlian1; Zou, Minjie1,3; Ma, Xiuliang1,4
Corresponding AuthorZhu, Yinlian(ylzhu@imr.ac.cn)
2018-12-28
Source PublicationJOURNAL OF MATERIALS RESEARCH
ISSN0884-2914
Volume33Issue:24Pages:4156-4164
AbstractHigh-index ferroelectric thin films show excellent dielectricity, piezoelectricity and switching behaviors. Understanding the misfit strain relaxation behavior may prove beneficial to gaining insights into the high-quality growth of high-index ferroelectric films. In this study, ferroelectric PbTiO3 thin films were deposited on the (101)-oriented (La, Sr)(Al, Ta)O-3 substrate by pulsed laser deposition and were investigated using (scanning) transmission electron microscopy. Two types of misfit dislocations with line directions of <111> and [010] were found at the interface. The <111> dislocation exhibited Burgers vectors of alpha[011] or alpha[011], while the [010] dislocation featured Burgers vectors of a alpha[101]. The former might be generated by gliding, and the latter by climbing. We propose that the misfit strain relaxation in this film system basically results from the formation of dislocations and the residual misfit strain is relaxed via the formation of 90 degrees ac domains.
Keywordferroelectric film transmission electron microscopy misfit strain relaxation
Funding OrganizationNational Natural Science Foundation of China ; National Basic Research Program of China ; Key Research Program of Frontier Sciences CAS ; Youth Innovation Promotion Association CAS ; IMR SYNL-T.S. Ke Research Fellowship
DOI10.1557/jmr.2018.422
Indexed BySCI
Language英语
Funding ProjectNational 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] ; Youth Innovation Promotion Association CAS[2016177] ; IMR SYNL-T.S. Ke Research Fellowship
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000454574700003
PublisherCAMBRIDGE UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130953
Collection中国科学院金属研究所
Corresponding AuthorZhu, Yinlian
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
4.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Feng, Yanpeng,Tang, Yunlong,Zhu, Yinlian,et al. Misfit strain relaxations of (101)-oriented ferroelectric PbTiO3/(La, Sr)(Al, Ta)O-3 thin film systems[J]. JOURNAL OF MATERIALS RESEARCH,2018,33(24):4156-4164.
APA Feng, Yanpeng,Tang, Yunlong,Zhu, Yinlian,Zou, Minjie,&Ma, Xiuliang.(2018).Misfit strain relaxations of (101)-oriented ferroelectric PbTiO3/(La, Sr)(Al, Ta)O-3 thin film systems.JOURNAL OF MATERIALS RESEARCH,33(24),4156-4164.
MLA Feng, Yanpeng,et al."Misfit strain relaxations of (101)-oriented ferroelectric PbTiO3/(La, Sr)(Al, Ta)O-3 thin film systems".JOURNAL OF MATERIALS RESEARCH 33.24(2018):4156-4164.
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