| Issue |
J. Phys. IV France
Volume 7, Number C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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|---|---|---|
| Page(s) | C2-147 - C2-149 | |
| DOI | https://doi.org/10.1051/jp4/1997145 | |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-147-C2-149
DOI: 10.1051/jp4/1997145
Department of Physics, Martin-Luther-University, Halle-Wittenberg, 06099 Halle (Saale), Germany
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-147-C2-149
DOI: 10.1051/jp4/1997145
Comparison of Different Methods to Include the Atomic Movement into the Electron Scattering
P. RennertDepartment of Physics, Martin-Luther-University, Halle-Wittenberg, 06099 Halle (Saale), Germany
Abstract
Curved wave corrections to the Debye-Waller factor are discussed. Starting from a general expression
characterized by an operator J(u) different approximations are compared as used for LEED, XAFS and PED,
respectively. The results depend on the way to include correlations between the movement of different atoms and
on the method to evaluate the application of the operator J. The evaluation may be simplified for a restriction
on single scattering contributions. The corrections may be included into the scattering matrix or they appear as
additional expressions. Special care has to be taken of PED where a square of a multiple scattering expression has
to be considered.
© EDP Sciences 1997