# Nonresonant inelastic x-ray scattering involving excitonic excitations: the examples of NiO and CoO.

@article{Haverkort2007NonresonantIX,
title={Nonresonant inelastic x-ray scattering involving excitonic excitations: the examples of NiO and CoO.},
author={Maurits W. Haverkort and Akihiro Tanaka and Liu Hao Tjeng and George A. Sawatzky},
journal={Physical review letters},
year={2007},
volume={99 25},
pages={
257401
}
}
• Published 31 May 2007
• Physics
• Physical review letters
In a recent publication Larson et al. reported remarkably clear d-d excitations for NiO and CoO with x-ray scattering. Here we present an accurate quantitative description based on a local many body approach, beyond local density approximation + Hubbard U approximations. The magnitude of q[over -->] determines which of the allowed multipoles contributes most to the spectra. The direction of q[over -->] with respect to the crystal can be used as an equivalent to polarization similar to electron…

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