Data analysis method to achieve sub-10 pm spatial resolution using extended X-ray absorption fine-structure spectroscopy

doi:10.1107/S1600577514010406

	Data analysis method to achieve sub-10 pm spatial resolution using extended X-ray absorption fine-structure spectroscopy
	Du, Yonghua 1; Wang, Jia-ou 2; Jiang, Longhua 3; Borgna, Lucas Santiago 1; Wang, Yanfei 4; Zheng, Yi 5; Hu, Tiandou 2
刊名	JOURNAL OF SYNCHROTRON RADIATION
	2014-07-01
卷号	21 页码:756-761
关键词	EXAFS spatial resolution atom distribution function
ISSN号	0909-0495
DOI	10.1107/S1600577514010406
文献子类	Article
英文摘要	Obtaining sub-10 pm spatial resolution by extended X-ray absorption fine structure (EXAFS) spectroscopy is required in many important fields of research, such as lattice distortion studies in colossal magnetic resistance materials, high-temperature superconductivity materials etc. However, based on the existing EXAFS data analysis methods, EXAFS has a spatial resolution limit of pi/2 Delta k which is larger than 0.1 angstrom. In this paper a new data analysis method which can easily achieve sub-10 pm resolution is introduced. Theoretically, the resolution limit of the method is three times better than that normally available. The method is examined by numerical simulation and experimental data. As a demonstration, the LaFe1-xCrxO3 system (x = 0, 1/3, 2/3) is studied and the structural information of FeO6 octahedral distortion as a function of Cr doping is resolved directly from EXAFS, where a resolution better than 0.074 angstrom is achieved.
WOS关键词	PAIR DISTRIBUTION FUNCTION ; NEAR-EDGE STRUCTURE ; EXAFS SPECTRA ; REAL-SPACE ; LAFE1-XCRXO3 ; DIFFRACTION ; DISTORTIONS ; PEROVSKITE ; LACOO3
WOS研究方向	Instruments & Instrumentation ; Optics ; Physics
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000338124300015
资助机构	Chinese Academy of Science(XDB10020100) ; Chinese Academy of Science(XDB10020100) ; Agency for Science, Technology and Research (AStar) of Singapore ; Agency for Science, Technology and Research (AStar) of Singapore ; Chinese Academy of Science(XDB10020100) ; Chinese Academy of Science(XDB10020100) ; Agency for Science, Technology and Research (AStar) of Singapore ; Agency for Science, Technology and Research (AStar) of Singapore ; Chinese Academy of Science(XDB10020100) ; Chinese Academy of Science(XDB10020100) ; Agency for Science, Technology and Research (AStar) of Singapore ; Agency for Science, Technology and Research (AStar) of Singapore ; Chinese Academy of Science(XDB10020100) ; Chinese Academy of Science(XDB10020100) ; Agency for Science, Technology and Research (AStar) of Singapore ; Agency for Science, Technology and Research (AStar) of Singapore
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/86182]
专题	中国科学院地质与地球物理研究所
通讯作者	Du, Yonghua
作者单位	1.ASTAR, Inst Chem & Engn Sci, Singapore 627833, Singapore 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Penn State Univ, Dept Phys, University Pk, PA 16802 USA 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 5.Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
推荐引用方式 GB/T 7714	Du, Yonghua,Wang, Jia-ou,Jiang, Longhua,et al. Data analysis method to achieve sub-10 pm spatial resolution using extended X-ray absorption fine-structure spectroscopy[J]. JOURNAL OF SYNCHROTRON RADIATION,2014,21:756-761.
APA	Du, Yonghua.,Wang, Jia-ou.,Jiang, Longhua.,Borgna, Lucas Santiago.,Wang, Yanfei.,...&Hu, Tiandou.(2014).Data analysis method to achieve sub-10 pm spatial resolution using extended X-ray absorption fine-structure spectroscopy.JOURNAL OF SYNCHROTRON RADIATION,21,756-761.
MLA	Du, Yonghua,et al."Data analysis method to achieve sub-10 pm spatial resolution using extended X-ray absorption fine-structure spectroscopy".JOURNAL OF SYNCHROTRON RADIATION 21(2014):756-761.