  Electron energy loss near edge spectra (ELNES) has been calculated for two
different Fe based superconducting material FeSe and FeTe using density
functional theory (DFT). Fe K-edge absorption spectra consist of several
features, origins of which are thoroughly described in light of partial density
of states of constituent atoms. Here we have included "core-hole effect" and
found drastic change in absorption spectra. Our results including core hole
effect matches very well with experimental X-ray Absorption Near Edge Structure
(XANES) results available in literature.
