Investigations of defects in Pb(Mg1/3Nb2/3)O-3-PbTiO3 single crystals grown along [001] direction

doi:10.1016/j.ceramint.2019.04.030

	Investigations of defects in Pb(Mg1/3Nb2/3)O-3-PbTiO3 single crystals grown along [001] direction
	Zhu, Rongfeng; Li, Xiaobing; Fu, Zhengqian; Chen, Jianwei; Xu, Haiqing; Luo, Haosu
刊名	CERAMICS INTERNATIONAL
	2019-07-01
卷号	45 期号:10 页码:13354
关键词	PMN-PT Single crystals Growth directions Point defects Relaxation response
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2019.04.030
文献子类	Article
英文摘要	The defects of the [001]-oriented grown 0.73Pb(Mg1/3Nb2/3)O-3-0.27PbTiO(3) (PMN-0.27PT) single crystals, as well as their influence on electrical properties, were studied by comparing the as-grown and annealed samples. Apart from the anomalies induced by the successive ferroelectric phase transitions, four relaxation processes of the as-grown PMN-0.27PT single crystals grown along [001] direction were discussed and determined by the dielectric spectroscopy, complex impedance spectroscopy, AC conductivity, suggesting the existence of many oxygen vacancies and lead vacancies in the as-grown samples. High-angle annular dark-field imaging of scanning transmission electron microscope (HAADF-STEM) was applied to observe the defects in atomic-scale. The point defects generated more easily when growing the PMNT crystals along [001] direction than along [111] direction can be attributed to the difference of growth mechanism and necessary growth environment induced by different growth directions, which results in the special coloration phenomenon of the [001]-oriented grown PMNT crystals.
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/27021]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Zhu, Rongfeng,Li, Xiaobing,Fu, Zhengqian,et al. Investigations of defects in Pb(Mg1/3Nb2/3)O-3-PbTiO3 single crystals grown along [001] direction[J]. CERAMICS INTERNATIONAL,2019,45(10):13354.
APA	Zhu, Rongfeng,Li, Xiaobing,Fu, Zhengqian,Chen, Jianwei,Xu, Haiqing,&Luo, Haosu.(2019).Investigations of defects in Pb(Mg1/3Nb2/3)O-3-PbTiO3 single crystals grown along [001] direction.CERAMICS INTERNATIONAL,45(10),13354.
MLA	Zhu, Rongfeng,et al."Investigations of defects in Pb(Mg1/3Nb2/3)O-3-PbTiO3 single crystals grown along [001] direction".CERAMICS INTERNATIONAL 45.10(2019):13354.