AsK-edge EXAFS study of the ternary system Sb2S3–As2S3–Tl2S |
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| Authors: | J.-M DURAND J OLIVIER-FOURCADE J.-C JUMAS M WOMES P PARENT |
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| Affiliation: | (1) Laboratoire de Physicochimie des Materiaux Solides (URA 407 CNRS), Universite Montpellier II – Sciences et Techniques du Languedoc, Place Eugene Bataillon, 34095 Montpellier Cedex 5, France;(2) Laboratoire de Spectroscopie Atomique et Ionique (URA 775 CNRS), Universite de Paris Sud, Bat 350, 91405 Orsay Cedex, France;(3) L.U.R.E., Universite Paris Sud, Bat. 309 D, 91405 Orsay Cedex, France |
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| Abstract: | The local environment of arsenic atoms in vitreous samples of the system Sb2S3–As2S3–Tl2S has been studied by EXAFS at the AsK-edge. The crystalline compound Tl5.6As15S25.3 situated within the zone of glass formation of the Sb2S3–As2S3–Tl2S phase diagram was used as reference compound in order to derive appropriate phase and amplitude functions. The structure parameters determined were the number of first neighbours N As–S, the arsenic-sulphur distance, R As–S, and the Debye-Waller factor, σAs–S. The influence of the glass-forming antimony sulphide Sb2S3 and the glass-modifying thallium sulphide Tl2S on the As2S3 host matrix has been shown. This revised version was published online in November 2006 with corrections to the Cover Date. |
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