Inelastic x-ray scattering from valence electrons near absorption edges of FeTe 
and TiSe2

Barbiellini, B.; Hancock, J. N.; Monney, Claude; Joly, Y.; Ghiringhelli, G.; Braicovich, L.; Schmitt, T.

doi:10.1103/PhysRevB.89.235138

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Inelastic x-ray scattering from valence electrons near absorption edges of FeTe and TiSe₂

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Monney, Claude
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Barbiellini, B., Hancock, J. N., Monney, C., Joly, Y., Ghiringhelli, G., Braicovich, L., et al. (2014). Inelastic x-ray scattering from valence electrons near absorption edges of FeTe and TiSe₂. Physical Review B, 89(23): 235138. doi:10.1103/PhysRevB.89.235138.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0023-C53A-3

Abstract

We study resonant inelastic x-ray scattering (RIXS) peaks corresponding to low-energy particle-hole excited states of metallic FeTe and semimetallic TiSe₂ for photon incident energy tuned near the L₃ absorption edge of Fe and Ti, respectively. We show that the cross-section amplitudes are well described within a renormalization-group theory where the effect of the core electrons is captured by effective dielectric functions expressed in terms of the the atomic scattering parameters f₁ of Fe and Ti. This method can be used to extract the dynamical structure factor from experimental RIXS spectra in metallic systems.