Fig. 8.29 Left to right: structure of CaAlSi. Scheme: Al (red dot), Ca (blue dot), Si (green dot); IXS
spectra at 10 K and 280 K [415]; IXS spectra for different Q
!
-values and fits from a theoretical
model; dispersion curves
Fig. 8.30 Left to right: layered structure of Ca 2 CuO 2 Cl 2 . Scheme: O (red dot), Cu (blue dot), Ca
(skyblue dot), Cl (green dot); IXS spectra, with close-ups highlighting Cu–O stretching region;
dispersion curves [416]
Fig. 8.31 Left: at low pressure magnesiowüstite (Fe-rich ferropericlase, (Mg,Fe)O) has a rock salt
structure with octahedral Fe and disordered Mg. Middle: IXS spectra for different directions. Right:
dispersion curves [417]
8.5 Inelastic X-ray Scattering (IXS)
225