A new FEFF-based wavelet for EXAFS data analysis

被引：231

作者：

Funke, Harald ^{[1
]}

Chukalina, Marina

Scheinost, Andreas C.

机构：

[1] Forschungszentrum, Inst Radiochem, Dresden, Germany

[2] Rossendorf Beamlin ESRF BM20, Grenoble, France

[3] Inst Microelect Technol RAS, Chenogolovka, Russia

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2007年 / 14卷

关键词：

EXAFS; wavelet transform; data evaluation; layered double hydroxides;

D O I：

10.1107/S0909049507031901

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new mother wavelet function for extended X-ray absorption fine-structure (EXAFS) data analysis has been designed, combining a model EXAFS function derived from the ab initio EXAFS code FEFF8.20 and the complex Morlet wavelet. This new FEFF-Morlet mother wavelet routine allows the generation of wavelets well adapted to specific EXAFS problems. A substantial gain in resolution of the wavelet ridges in k and r space is achieved. The method is applied to a structural problem of Zn-Al double-layer hydroxides, demonstrating unequivocally the homogeneity of the metal cation distribution in the hydroxide layers.

引用

页码：426 / 432

页数：7

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