Misfit strain relaxations of (101)-oriented ferroelectric PbTiO3/(La, Sr)(Al, Ta)O-3 thin film systems

doi:10.1557/jmr.2018.422

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	Misfit strain relaxations of (101)-oriented ferroelectric PbTiO3/(La, Sr)(Al, Ta)O-3 thin film systems
	Feng, Yanpeng 2,4; Tang, Yunlong 4; Zhu, Yinlian 4; Zou, Minjie 1,4; Ma, Xiuliang 3,4
刊名	JOURNAL OF MATERIALS RESEARCH
	2018-12-28
卷号	33 期号:24 页码:4156-4164
关键词	ferroelectric film transmission electron microscopy misfit strain relaxation
ISSN号	0884-2914
DOI	10.1557/jmr.2018.422
通讯作者	Zhu, Yinlian(ylzhu@imr.ac.cn)
英文摘要	High-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.
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] ; Youth Innovation Promotion Association CAS[2016177] ; IMR SYNL-T.S. Ke Research Fellowship
WOS研究方向	Materials Science
语种	英语
出版者	CAMBRIDGE UNIV PRESS
WOS记录号	WOS:000454574700003
资助机构	National 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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/130952]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhu, Yinlian
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 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.