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  • Title: Multiple scattering approach to K-edge XANES of Sb-Te systems.
    Author: Hayakawa K, Fujikawa T, Yiwata N, Tani K.
    Journal: J Synchrotron Radiat; 2001 Mar 01; 8(Pt 2):851-3. PubMed ID: 11512954.
    Abstract:
    The Sb-Te systems are important for optical memories. The local structures of these Sb-Te systems are crucial to understand the properties. Here we study three different Sb-Te systems, Sb2Te3, c- and a-SbTe (c; crystalline, a; amorphous) by use of XANES analyses. The present calculations for Sb2Te3 system show quite good agreement with the observed spectra. In contrast to Sb2Te3 system, both c- and a-SbTe systems, in which a ratio of Sb to Te is 3, are metastable; both of the structures have not been known yet. We thus investigate these local structures by use of the multiple scattering approach, and propose a possible model for each of c- and a-SbTe.
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