1. Near edge x-ray absorption fine structure spectroscopy with x-ray free-electron lasers.
- Author
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Bernstein, D. P., Acremann, Y., Scherz, A., Burkhardt, M., Stöhr, J., Beye, M., Schlotter, W. F., Beeck, T., Sorgenfrei, F., Pietzsch, A., Wurth, W., and Föhlisch, A.
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X-ray absorption near edge structure , *SOLIDS , *LASERS , *X-rays - Abstract
We demonstrate the feasibility of near edge x-ray absorption fine structure spectroscopy on solids by means of femtosecond soft x-ray pulses from a free-electron laser (FEL). Our experiments, carried out at the FEL at Hamburg used a special sample geometry, spectrographic energy dispersion, single shot position-sensitive detection, and a data normalization procedure that eliminates the severe fluctuations of the incident intensity in space and photon energy. As an example, we recorded the 3D1 N4,5 edge absorption resonance of La3+ ions in LaMnO3. Our study opens the door for x-ray absorption measurements on future x-ray FEL facilities. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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