Thickness Dependence of Oxygen Vacancy Ordering in Strained LaCoO(3-x )Thin Films
文献类型:期刊论文
作者 | Zhang, Ningbin1,3; Tian, Xianhui1,3; Zhu, Yinlian1; Wang, Yujia1; Tang, Yunlong1; Zou, Minjie1,3; Ma, Jinyuan1,2; Feng, Yanpeng1,4; Geng, Wanrong1,3; Cao, Yi1,3 |
刊名 | JOURNAL OF PHYSICAL CHEMISTRY C |
出版日期 | 2020-06-11 |
卷号 | 124期号:23页码:12492-12501 |
ISSN号 | 1932-7447 |
DOI | 10.1021/acs.jpcc.0c02545 |
通讯作者 | Zhu, Yinlian(ylzhu@imr.ac.cn) ; Ma, Xiuliang(xlma@imr.ac.cn) |
英文摘要 | The physical properties of perovskite oxides are very sensitive to oxygen vacancy structures, and an unambiguous acquaintance of vacancy structures of thin films is the precondition for applications of many functional devices. Here, we report critical thickness control over oxygen vacancy ordering structure in epitaxial LaCoO3-x (LCO) thin films characterized by atomic resolution scanning transmission electron microscopy (STEM). Lattice mappings extracted from Cs-corrected STEM images demonstrate that vacancy ordering planes are vertically distributed in LCO films grown on SrTiO3 substrates with the thickness above 5 nm, transversally distributed when the thickness is below 5 nm and distributed in a mixed manner when the thickness is 5 nm. Similar phenomenon also happens in LCO/NdGaO3 film systems with the critical thickness of around 13 nm due to the reduced tensile strain imposed by the substrate. The thickness effect phenomenon is collaborated by first-principles calculations and the formation mechanism is discussed from the point of view of strain relaxation. These findings demonstrate that the thickness can exquisitely control the periodic modulations of vacancy ordering structure in LCO thin films, suggesting an effective pathway of thickness controlling and enhancing physical properties of functional oxide films. |
资助项目 | Key Research Program of Frontier Sciences CAS[QYZDJ-SSW-JSC010] ; National Natural Science Foundation of China[51971223] ; National Natural Science Foundation of China[51671194] ; National Natural Science Foundation of China[51922100] ; Shenyang National Laboratory for Materials Science[L2019R06] ; Shenyang National Laboratory for Materials Science[L2019R08] ; Shenyang National Laboratory for Materials Science[L2019F01] ; Shenyang National Laboratory for Materials Science[L2019F13] ; Youth Innovation Promotion Association CAS[2016177] |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000541745800035 |
资助机构 | Key Research Program of Frontier Sciences CAS ; National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science ; Youth Innovation Promotion Association CAS |
源URL | [http://ir.imr.ac.cn/handle/321006/139416] |
专题 | 金属研究所_中国科学院金属研究所 |
通讯作者 | Zhu, Yinlian; Ma, Xiuliang |
作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Ningbin,Tian, Xianhui,Zhu, Yinlian,et al. Thickness Dependence of Oxygen Vacancy Ordering in Strained LaCoO(3-x )Thin Films[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2020,124(23):12492-12501. |
APA | Zhang, Ningbin.,Tian, Xianhui.,Zhu, Yinlian.,Wang, Yujia.,Tang, Yunlong.,...&Ma, Xiuliang.(2020).Thickness Dependence of Oxygen Vacancy Ordering in Strained LaCoO(3-x )Thin Films.JOURNAL OF PHYSICAL CHEMISTRY C,124(23),12492-12501. |
MLA | Zhang, Ningbin,et al."Thickness Dependence of Oxygen Vacancy Ordering in Strained LaCoO(3-x )Thin Films".JOURNAL OF PHYSICAL CHEMISTRY C 124.23(2020):12492-12501. |
入库方式: OAI收割
来源:金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。