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

	Data analysis method to achieve sub-10 pm spatial resolution using extended X-ray absorption fine-structure spectroscopy
	Du, YH; Wang JO(王嘉鸥); Wang, JO; Jiang, LH; Borgna, LS; Wang, YF; Zheng, Y; Hu, TD;胡天斗
刊名	JOURNAL OF SYNCHROTRON RADIATION
	2014
卷号	21 期号:4 页码:756-761
关键词	EXAFS spatial resolution atom distribution function
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.
学科主题	Instruments & Instrumentation; Optics; Physics
收录类别	SCI
WOS记录号	WOS:000338124300015
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225170]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Du, YH,Wang JO,Wang, JO,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(4):756-761.
APA	Du, YH.,王嘉鸥.,Wang, JO.,Jiang, LH.,Borgna, LS.,...&Hu, TD；胡天斗.(2014).Data analysis method to achieve sub-10 pm spatial resolution using extended X-ray absorption fine-structure spectroscopy.JOURNAL OF SYNCHROTRON RADIATION,21(4),756-761.
MLA	Du, YH,et al."Data analysis method to achieve sub-10 pm spatial resolution using extended X-ray absorption fine-structure spectroscopy".JOURNAL OF SYNCHROTRON RADIATION 21.4(2014):756-761.