Modulation of charged a1/a2 domains and piezoresponses of tensile strained PbTiO3 films by the cooling rate

doi:10.1039/c9ra02485a

	Modulation of charged a1/a2 domains and piezoresponses of tensile strained PbTiO3 films by the cooling rate
	Ma, Jinyuan 1,2,3; Zhu, Yinlian 2; Tang, Yunlong 2; Han, Mengjiao 2,4; Wang, Yujia 2; Zhang, Ningbin 1,2; Zou, Minjie 1,2; Feng, Yanpeng 2,4; Geng, Wanrong 1,2; Ma, Xiuliang 2,3
刊名	RSC Advances
	2019
卷号	9 期号:25 页码:13981-13990
关键词	Domain walls High resolution transmission electron microscopy Lead titanate Modulation Neodymium compounds Pulsed laser deposition Scanning electron microscopy Scanning probe microscopy Thin films Titanium compounds Charged domain wall Conventional transmission electron microscopies Domain configurations Electronic application Formation mechanism Fundamental research High cooling rates Piezoresponse force microscopy
DOI	10.1039/c9ra02485a
英文摘要	Controlling domain width, orientation, and patterns in oxide ferroelectrics are not only important for fundamental research but also for potential electronic application. Here, a series of PbTiO3 thin films under various cooling rates were deposited on (110)-oriented NdScO3 substrates by pulsed laser deposition and investigated by using conventional transmission electron microscopy, Cs-corrected scanning TEM and piezoresponse force microscopy. Contrast analysis and electron diffraction revealed that PbTiO3 films are a1/a2 domain patterns under large tensile strains with different cooling rates. The a1/a2 domains distribute periodically and the domain width increases with decrease in the cooling rates. Upon increasing the cooling rate, the domain density increases and the domain configurations become complicated. There are special square frame-like domain patterns with charged domain walls found in the PTO films with the fast cooling rate. PFM measurement shows that the PTO films with high cooling rate exhibit enhanced piezoresponse behavior which is ascribed to the high density domain/domain walls and special domain configurations. The formation mechanism of the different domain configurations is discussed in terms of the effect of cooling rates, defects and thermal kinetics. These results are expected to provide useful information for domain/domain wall control and thus facilitate further modulation of the properties for potential applications. © 2019 The Royal Society of Chemistry.
WOS研究方向	Chemistry
语种	英语
出版者	Royal Society of Chemistry
WOS记录号	WOS:000468640100003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114862]
专题	材料科学与工程学院材料科学与工程学院_特聘教授组
作者单位	1.School of Material Science and Engineering, University of Science and Technology of China, Hefei; 230026, China; 2.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, Shenyang; 110016, China; 3.State Key Lab of Advanced Processing and Recycling on Non-ferrous Metals, Lanzhou University of Technology, Langongping Road 287, Lanzhou; 730050, China; 4.University of Chinese Academy of Sciences, Yuquan Road 19, Beijing; 100049, China
推荐引用方式 GB/T 7714	Ma, Jinyuan,Zhu, Yinlian,Tang, Yunlong,et al. Modulation of charged a1/a2 domains and piezoresponses of tensile strained PbTiO3 films by the cooling rate[J]. RSC Advances,2019,9(25):13981-13990.
APA	Ma, Jinyuan.,Zhu, Yinlian.,Tang, Yunlong.,Han, Mengjiao.,Wang, Yujia.,...&Ma, Xiuliang.(2019).Modulation of charged a1/a2 domains and piezoresponses of tensile strained PbTiO3 films by the cooling rate.RSC Advances,9(25),13981-13990.
MLA	Ma, Jinyuan,et al."Modulation of charged a1/a2 domains and piezoresponses of tensile strained PbTiO3 films by the cooling rate".RSC Advances 9.25(2019):13981-13990.