Volume 73, Number 1, January 2006
|Page(s)||121 - 127|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||02 December 2005|
Correlation functions measured by indirect resonant inelastic X-ray scattering
Institute-Lorentz for Theoretical Physics Universiteit Leiden - P.O. Box 9506 2300 RA Leiden, The Netherlands
2 Theoretical Physics, Institute for Molecules and Materials Radboud Universiteit Nijmegen - P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
3 Department of Physics, Northern Illinois University - De Kalb, IL 60115, USA
4 Argonne National Laboratory - 9700 South Cass Avenue, Argonne, IL 60439, USA
Accepted: 4 November 2005
We express the cross-section for indirect resonant inelastic X-ray scattering in terms of an intrinsic dynamic correlation function of the system that is studied with this technique. We find that the cross-section is a linear combination of the charge response function and the dynamic longitudinal spin density correlation function of the electrons that couple to the core-hole. This result is asymptotically exact for both strong and weak local core-hole potentials. The relative charge and spin contribution to the inelastic spectral weight can be changed by varying the incident photon energy.
PACS: 78.70.-g – Interactions of particles and radiation with matter / 78.70.Ck – X-ray scattering
© EDP Sciences, 2005
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