Hierarchical domain structures associated with oxygen octahedra tilting patterns in lead-free (Bi1/2Na1/2)TiO3

doi:10.1088/1361-6528/aca030

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	Hierarchical domain structures associated with oxygen octahedra tilting patterns in lead-free (Bi1/2Na1/2)TiO3
	Hu, Dongli 1,2; Fan, Zhongming 3; Sawyer, William 4; Henderson, Mitchell 4; Luo, Duan 1,5; Liu, Xiaoming 3; Gu, Hui 2; Tan, Xiaoli 3; Wen, Jianguo 1
作者部门	条纹相机工程中心
	2023-02-12
发表期刊	NANOTECHNOLOGY
ISSN	0957-4484;1361-6528
卷号	34 期号:7
产权排序	5
摘要	Hierarchical domain structures associated with oxygen octahedra tilting patterns were observed in lead-free (Bi1/2Na1/2)TiO3 ceramics using aberration-corrected high-resolution transmission electron microscopy (HRTEM). Three types of domains are induced by distinct mechanisms: the 'orientation-domain' is induced at micrometer scale formed by different tilting orientations of the oxygen octahedra, the 'meso-chemical-domain' occurs at a few tens of nanometer scale by chemical composition variation on the A-site in the ABO(3) perovskite structure, and the 'nano-cluster-region' runs across several unit-cells with apparent A-site cation segregation with oxygen vacancies clustering around Na cations. Based on HRTEM amplitude contrast imaging (ACI), the correlation between the oxygen octahedral tilting pattern and compositional non-stoichiometry was established. The role of the hierarchical domain structure associated with the tilting patterns of the oxygen octahedra on the ferroelectric behavior of (Bi1/2Na1/2)TiO3 is also discussed.
关键词	lead-free piezoelectric materials domain structures transmission electron microscopy
DOI	10.1088/1361-6528/aca030
收录类别	SCI
语种	英语
WOS记录号	WOS:000891960100001
出版者	IOP Publishing Ltd
引用统计
文献类型	期刊论文
条目标识符	http://ir.opt.ac.cn/handle/181661/96267
专题	条纹相机工程中心
通讯作者	Wen, Jianguo
作者单位	1.Argonne Natl Lab, Ctr Nanoscale Mat, Lemont, IL 60437 USA 2.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China 3.Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA 4.West Chester Univ Penn, Phys Dept, W Chester, PA 19383 USA 5.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China
推荐引用方式 GB/T 7714	Hu, Dongli,Fan, Zhongming,Sawyer, William,et al. Hierarchical domain structures associated with oxygen octahedra tilting patterns in lead-free (Bi1/2Na1/2)TiO3[J]. NANOTECHNOLOGY,2023,34(7).
APA	Hu, Dongli.,Fan, Zhongming.,Sawyer, William.,Henderson, Mitchell.,Luo, Duan.,...&Wen, Jianguo.(2023).Hierarchical domain structures associated with oxygen octahedra tilting patterns in lead-free (Bi1/2Na1/2)TiO3.NANOTECHNOLOGY,34(7).
MLA	Hu, Dongli,et al."Hierarchical domain structures associated with oxygen octahedra tilting patterns in lead-free (Bi1/2Na1/2)TiO3".NANOTECHNOLOGY 34.7(2023).

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