Multiple-scattering approach to the x-ray-absorption spectra of perovskite-type compounds

The metal K x-ray-absorption near-edge structure has been calculated for the first time from a multiple-scattering formalism for the perovskite-type compounds ${\mathrm{KMnF}}_3$, ${\mathrm{KFeF}}_3$, ${\mathrm{KCoF}}_3$, ${\mathrm{KNiF}}_3$, and ${\mathrm{KZnF}}_3$. The calculation includes the effects of a core hole and of Madelung corrections for crystal potentials. It is shown that the results including the lifetime-broadening effect are in good agreement with the experiment of Shulman et al.