On the temperature dependence of multiple- and single-scattering contributions in magnetic EXAFS

Wende, H.; Wilhelm, F.; Poulopoulos, P.; Baberschke, K.; Freeland, J. W.; Idzerda, Y. U.; Rogalev, A.; Schlagel, D. L.; Lograsso, T. A.; Arvanitis, D.
May 2000
AIP Conference Proceedings;2000, Vol. 514 Issue 1, p140
Academic Journal
We demonstrate that the temperature dependence of structural as well as magnetic fluctuations can be probed by the use of the Magnetic Extended X-ray Absorption Fine Structure (MEXAFS) spectroscopy. We compare those to the dynamic disorder as probed by the EXAFS. Here we present temperature-dependent MEXAFS investigations carried out at the L-edges of a thin Fe film and a Gd single crystal. By comparing the experimental results to ab initio calculations the single-scattering contributions are separated from multiple-scattering contributions. It is found that the multiple-scattering contributions are enhanced for the MEXAFS compared to the normal EXAFS. © 2000 American Institute of Physics.


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