Related Experiment Video
Updated: Oct 5, 2026

Analysis of SEC-SAXS data via EFA deconvolution and Scatter
Published on: January 28, 2021
An investigation of the use of the Hedin-Lundqvist exchange and correlation potential in EXAFS data analysis
1Department of Physics and Astronomy, University of Leicester, University Road, Leicester, UK. mr6@le.ac.uk
Abstract:
In real systems, inelastic processes remove photoelectrons from the elastic scattering channel. This reduces the amplitude of the EXAFS. Traditionally the discrepancies between experimental and theoretical amplitudes were treated by including two semi-empirical reduction factors in the data analysis. Some inelastic effects may, however, be modelled more rigorously using a complex exchange and correlation potential, for example the Hedin-Lundqvist (HL) potential used in most EXAFS data-analysis programs. In this paper a systematic study of the effects of the HL potential on the calculated EXAFS amplitudes is presented. Expressions are derived whereby the EXAFS amplitudes may be examined in the presence of an arbitrary complex potential independently to the rest of the EXAFS signal. These results are used to study the effects of the HL potential on EXAFS data analysis in detail.
More Related Videos
Related Concept Videos
2D NMR: Overview of Heteronuclear Correlation Techniques
Atomic Fluorescence Spectroscopy
2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)
2D NMR: Overview of Homonuclear Correlation Techniques
COSY90 is the standard two-dimensional (2D) COSY experiment that...
Atomic Emission Spectroscopy: Lab
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing nebulizer...

