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Resonant elastic scattering amplitudes f =f' +if" in the vicinity of the absorption edges have been obtained by applying a differential Kramers-Kronig transform to theoretical 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 results are compared to experimental measurements of Bragg peak intensities as a continuous function of energy for Cu metal and Yba(2)Cu(3)O(6.8) at the Cu K absorption edge, and for UO(2) at the U M(iv) absorption edge.

Additional information

Authors: CROSS J O, Naval research Laboratory, Washington (US);BELL M I, Naval research Laboratory, Washington (US);NEWVILLE M, Lawrence Livermore National Laboratory (US);REHR J J, University of Washington, Seattle (US);SORENSON L B, University of Washington, Seattle (US);BOULDIN C E, National Institute of Standards and Technology, Maryland (US);WATSON G, University of Maryland, Maryland (US);GOUDER T, ITU Karlsruhe (DE);LANDER G H, ITU Karlsruhe (DE)
Bibliographic Reference: Article: Physical Review B, 1998
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