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

文献类型：期刊论文

作者Du, Yonghua1; Wang, Jia-ou2; Jiang, Longhua3; Borgna, Lucas Santiago1; Wang, Yanfei4; Zheng, Yi5; Hu, Tiandou2
刊名JOURNAL OF SYNCHROTRON RADIATION
出版日期2014-07-01
卷号21页码:756-761
关键词EXAFS spatial resolution atom distribution function
ISSN号0909-0495
DOI10.1107/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
WOS记录号WOS:000338124300015
出版者WILEY-BLACKWELL
资助机构Chinese Academy of Science(XDB10020100) ; Chinese Academy of Science(XDB10020100) ; Agency for Science, Technology and Research (A*Star) of Singapore ; Agency for Science, Technology and Research (A*Star) of Singapore ; Chinese Academy of Science(XDB10020100) ; Chinese Academy of Science(XDB10020100) ; Agency for Science, Technology and Research (A*Star) of Singapore ; Agency for Science, Technology and Research (A*Star) of Singapore ; Chinese Academy of Science(XDB10020100) ; Chinese Academy of Science(XDB10020100) ; Agency for Science, Technology and Research (A*Star) of Singapore ; Agency for Science, Technology and Research (A*Star) of Singapore ; Chinese Academy of Science(XDB10020100) ; Chinese Academy of Science(XDB10020100) ; Agency for Science, Technology and Research (A*Star) of Singapore ; Agency for Science, Technology and Research (A*Star) of Singapore
源URL[http://ir.iggcas.ac.cn/handle/132A11/86178]  
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.

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来源：地质与地球物理研究所

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