| Numéro |
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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|---|---|---|
| Page(s) | C2-241 - C2-242 | |
| DOI | https://doi.org/10.1051/jp4/1997181 | |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-241-C2-242
DOI: 10.1051/jp4/1997181
1 CCLRC Daresbuty Laboratory, Warrington WA4 4AD, UK
2 Dept. of Physics, University of Leicester, Leicester LEI 7RH, UK
3 Physics Dept., University of California, Santa Cruz, California 95064, U.S.A.
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-241-C2-242
DOI: 10.1051/jp4/1997181
Comparing Peak Asymmetries in EXAFS using RMC and Cumulant Expansion Data Analysis
G.E. van Dorssen1, B.T. Williams2, S.J. Gurman2 and F. Bridges31 CCLRC Daresbuty Laboratory, Warrington WA4 4AD, UK
2 Dept. of Physics, University of Leicester, Leicester LEI 7RH, UK
3 Physics Dept., University of California, Santa Cruz, California 95064, U.S.A.
Abstract
EXAFS measurements on RbBr at the Br absorption edge and different ternperature were carried out. Conventional
analysis of the data using the Daresbury EXCURV92 code shows with increasing temperature a decrease in nearest neighbour
distance. Also large differences are found in the coordination numbers for k and k3 weighted EXAFS with increasing temperature.
Using cumulant expansion when fitting the data results in a small increase in nearest neighbour distance with temperature, as
expected from thermal data.
© EDP Sciences 1997