Chemical effects of FKVVAuger spectra induced by photon impact

F $\mathrm{KVV}$ Auger emissions were measured with NaF, Mg${\mathrm{F}}_2$, A1${\mathrm{F}}_3$, and Teflon [${\left(\mathrm{C}{\mathrm{F}}_2\right)}_n$], which were induced by photoionization. Chemical effects were reflected in line broadening and change in intensity ratios of the spectra emitted from singly and doubly ionized initial states, $|K^1{L}^0〉$ and $|K^1{L}^1〉$. Reduction in Auger peak intensities which originated from $|K^1{L}^1〉$ is in the order of the covalencies of the fluorides or the natural widths of F $L$ shells. This is caused by the refilling of a F $L$-shell vacancy by one of the ligand electrons prior to Auger emission.