Sb LIII-edge XAS study of the ternary system Sb2S3As2S3Tl2S
1996; Elsevier BV; Volume: 194; Issue: 1-2 Linguagem: Inglês
10.1016/0022-3093(95)00507-2
ISSN1873-4812
AutoresJ.M. Durand, Pierre‐Emmanuel Lippens, J. Olivier‐Fourcade, J.C. Jumas, M. Womes,
Tópico(s)X-ray Spectroscopy and Fluorescence Analysis
ResumoThe local environment of antimony atoms in glassy samples of the system Sb2S3As2S3Tl2S is studied by X-ray absorption spectroscopy at the Sb LIII-edge. The crystalline compound TlSb3S5, situated within the zone of glass formation of the Sb2S3As2S3Tl2S phase diagram, is used as reference compound in order to derive appropriate phase and amplitude functions for the extended X-ray absorption fine structure (EXAFS) study. The limits of EXAFS in studying the local order around antimony in compounds with complex structure are discussed. The possibilities of a combined application of EXAFS, X-ray absorption near edge structure and 121Sb Mössbauer spectroscopy to the study of these compounds are shown. The results are discussed in terms of a model of random substitution of arsenic by antimony.
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