Resonant elastic scattering amplitudes Alpha f = f'+ f'' in the vicinity of the absorption edges have been obtained by appliyng a differential Kramers-Kronig transform to theoretical absorption cross-sections calculated by the AB INITIO x-ray absorption code FEFF. By including solid-state effects due to the local environment of a resonant atom, FEFF makes significant improvements to existing calculations of the resonant scattering amplitudes. The resultsare compared to experimental measurements of Bragg peak intensities as a continuous function of energy for Cu metal and YBa2Cu3O6.8 at the Cu K absorption edge, and for UO2 at the U M IV absorption edge.
CROSS J.O.;
REHR J.J.;
SORENSEN L.B.;
BOULDIN C.E.;
GOUDER Thomas;
LANDER Gerard Heath;
BELL M.I.;
1998-11-18
JRC17238
https://publications.jrc.ec.europa.eu/repository/handle/JRC17238,
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