XANES-calculations for the amorphous $Fe_{90}Zr_{10}$-alloy

XANES calculations at the Fe-K- as well as the Zr-K-edge have been performed for the amorphous Fe90Zr10-alloy using an electron multiple scattering theory [1]. We used for the calculations four structural models, which are in rather good agreement with diffraction data [2]. The results of the XANES calculations point to differences among the model-structures. An exhausting investigation on these differences shows that they do not originate from pair correlations but from higher order correlations. In addition it was found that the shape of the calculated XANES-curves must be attributed to more than one kind of short range structure