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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
2019-07-01
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume45Issue:10Pages:13354
SubtypeArticle
AbstractThe 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.
KeywordPMN-PT Single crystals Growth directions Point defects Relaxation response
DOI10.1016/j.ceramint.2019.04.030
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27021
Collection中国科学院上海硅酸盐研究所
Recommended Citation
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.
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