TY - GEN
T1 - EFFECTS OF MANY-BODY INTERACTIONS IN EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY (EXAFS)
AU - Bardyszewski, Witold
AU - Hedin, Lars
N1 - doi 10.1051/jphyscol:19879199
PY - 1987
Y1 - 1987
N2 - Abstract : We present the first a priori derivation of a many-body theory for EXAFS with clearly defined approximations and with final expressions which are feasible for quantitative evaluations. We conclude that the conventional EXAFS expression should be complemented with a term that crudely is the main term, energy-shifted and scaled down by a factor of order 0.2-0.3. Further the f-factors depend significantly, not only on the scattering properties of the individual ions, but also on the electron energy-loss properties of the material itself.
AB - Abstract : We present the first a priori derivation of a many-body theory for EXAFS with clearly defined approximations and with final expressions which are feasible for quantitative evaluations. We conclude that the conventional EXAFS expression should be complemented with a term that crudely is the main term, energy-shifted and scaled down by a factor of order 0.2-0.3. Further the f-factors depend significantly, not only on the scattering properties of the individual ions, but also on the electron energy-loss properties of the material itself.
U2 - 10.1051/jphyscol:19879199
DO - 10.1051/jphyscol:19879199
M3 - Paper in conference proceeding
VL - 48 (C9)
SP - 1101
EP - 1104
BT - Journal de Physique Colloques
A2 - Known, Not
ER -