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Article Dans Une Revue Journal of Alloys and Compounds Année : 2009

The structure of As3Se5Te2 infrared optical glass

Bruno Bureau
I. Kaban
  • Fonction : Auteur
U. Rutt
  • Fonction : Auteur

Résumé

The structure of As3Se5Te2 infrared optical glass was investigated by X-ray and neutron diffraction as well as extended X-ray absorption fine structure measurements at the As-, Se- and Te K-edges. The five datasets were modelled simultaneously by the reverse Monte Carlo simulation technique. Experimental data could be fitted satisfactorily by allowing As-Se, As-Te and Se-Te bonds only. It was revealed that the affinity of As is much higher to Se than to Te. The nearest As-Se distance is similar to that found in other vitreous As-Se based alloys, while the As-Te bond length is 0.02-0.04 Å shorter in As3Se5Te2 than in binary As-Te glasses.

Domaines

Matériaux

Dates et versions

hal-00496987 , version 1 (02-07-2010)

Identifiants

Citer

P. Jóvári, Bruno Bureau, I. Kaban, Virginie Nazabal, B. Beuneu, et al.. The structure of As3Se5Te2 infrared optical glass. Journal of Alloys and Compounds, 2009, 488 (1), pp.39-43. ⟨10.1016/j.jallcom.2009.08.154⟩. ⟨hal-00496987⟩
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