L2,3-M4,5M4,5Auger-electron spectra of the metallic elementsAg47toSb51: An analysis of the main and satellite structures

The $L_2$,3-$M_4$,5${\mathrm{M}}_4$,5 Auger-electron spectra of the metallic elements ${}_{47}{}^{}{}_{}{}^{}\mathrm{Ag}$ to ${}_{51}{}^{}{}_{}{}^{}\mathrm{Sb}$ have been measured. The spectra are analyzed within the framework of Hartree-Fock differential self-consistent-field (ΔSCF) calculations in which correlation and relativistic energy shifts have been included, using j?(hyj coupling for the initial state and intermediate coupling for the final state. It is found that structure on the low-energy side of the $L_3$-$M_4$,5${\mathrm{M}}_4$,5 spectrum, previously interpreted as due to the $L_3$ $M_4$,5-$M_4$,5${\mathrm{M}}_4$, ${}_5{}^{}{}_{}{}^{}\mathrm{M}_4^{}{}_{}{}^{}$,5 multiple-hole excitations following the $L_1$-$L_3$ $M_4$,5 Coster-Kronig decay process, is also present in the $L_2$-$M_4$,5${\mathrm{M}}_4$,5 spectrum. Electron energy-loss spectroscopy data show that the structure in fact corresponds to plasmon satellites. The &${\mathrm{M}}_4$, ${}_5{}^{}{}_{}{}^{}\mathrm{M}_4^{}{}_{}{}^{}$,5 satellites are revealed in ${}_{47}{}^{}{}_{}{}^{}\mathrm{Ag}$ and ${}_{48}{}^{}{}_{}{}^{}\mathrm{Cd}$ by an anomalous value of the intensity ratio of the $L_3$-$M_4$,5${\mathrm{M}}_4$,5 and $L_2$-$M_4$,5