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Influence of source coherence on x-ray absorption spectroscopy
J H Dunn1, D Arvanitis, R Carr
1Department of Physics, University of Uppsala, Box 530, S-751 21 Uppsala, Sweden.
Physical Review Letters
|October 4, 2000
Abstract:
Core-level x-ray absorption spectroscopy measurements have been performed at the L3,2 edges of Fe and Co thin films. The degree of source coherence was varied using soft x rays from five different beam lines. We observe an increase of the L edge resonance intensities relative to the continuum states which we propose is due to the presence of transverse coherence in the exciting radiation.