Figure 2.
(a) Comparison of the rigid-ion-model (RIM) calculations of 3C-SiC (red colored lines) with the experimental (inelastic X-ray scattering, IXS using symbols) and zb GeC (blue colored lines) along high-symmetry directions of the BZ Brillouin zone, (b) RIM calculated results of one-phonon density of states for 3C-SiC (red colored lines) and zb GeC (blue colored lines) (see text).