M2,3M4,5M4,5 super-Coster-Kronig spectra of solid Ge and resonance effects around the 3p threshold

M2,3M4,5M4,5 super-Coster-Kronig spectra of solid germanium have been measured using monochromatized synchrotron radiation. M2M4,5M4,5 and M3M4,5M4,5 transitions have been separated from each other. Resonance features were found at the 3p threshold corresponding to excitation of core excitons followed by resonant super-Coster-Kronig decay, which leaves two 3d holes and an excited electron in the conduction band. As opposed to normal Auger lines, these resonance features shift linearly with photon energy.