title: Verification of the FEFF simulations to K-edge XANES spectra of the third row elements.
abstract: Availability of the FEFF simulations to K-edge x-ray absorption near-edge structure (XANES) spectra of the third row elements has been investigated. The FEFF simulations reproduce the spectra from simple substances (Al, Mg, Si, P and S) well, but do not always reproduce those from chemical compounds containing the third row elements. The FEFF simulation has a tendency to underestimate the white line intensity of the XANES spectra in these compounds. This situation is much improved by the Z+1 approach, in which the central atom is replaced by an atom with the atomic number larger by one.
authors.affiliation: The SR center, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga 525-8577, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Nakanishi
authors.forename: T
authors.initials: T
authors.lastname: Ohta