A new FEFF-based wavelet for EXAFS data analysis
A new FEFF-based wavelet for EXAFS data analysis
Funke, H.; Chukalina, M.; Scheinost, A.
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 FEFFMorlet 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 ZnAl double-layer hydroxides, demonstrating unequivocally the homogeneity of the metal cation distribution in the hydroxide layers.
Keywords: EXAFS; wavelet transform; data evaluation; layered double hydroxides
-
Journal of Synchrotron Radiation 14(2007), 426-432
DOI: 10.1107/S0909049507031901
ISSN: 0909-0495
Cited 162 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-9561