CONTRIBUTION OF THE INTERFERENCE EFFECTS INTO THE XANES BY MULTIPLE-SCATTERING THEORY

In terms of multiple-scattering theory by the method of local coherent potentials the empty part of the electronic density of states and int erference effects due to scattering by different coordination spheres of clusters centered at the X-ray absorbing atoms have been investigat ed. The significance of the interference effects has been shown. The c alculations have been performed for TiSi2 and TiC. The theoretical for ms of local partial DOS correspond to experimental XANES and EELS.