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Calculation of small arsenic and antimony chalcogenide clusters with an application to vitreous chalcogenide structure

Authors
  • Gurin, V.
  • Shpotyuk, O.
  • Boyko, V.
Type
Preprint
Publication Date
Apr 01, 2015
Submission Date
Apr 01, 2015
Identifiers
arXiv ID: 1504.00246
Source
arXiv
License
Yellow
External links

Abstract

Small clusters of the As/Sb-S/Se system that is of importance for simulation of elementary structure units of chalcogenide glasses are calculated using DFT technique. Different structures of As2Xn- and Sb2Xn- (X=S,Se) with proper hydrogen termination are compared by the total electronic energy values. The most stable As-X structures are of corner-sharing (CS) type (i.e. the elementary AsX3-pyramids linked via one X atom, and in the case of Sb-X family a new asymmetrical Sb2Se3 cluster appears rather than its compact (C3h) form.

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