Atomic structure of As34Se51Ag15 and As34Te51Ag15 glasses studied with Xrd, Nd and exafs and modeled with Rmc

I. Kaban, W. Hoyer, P. Jóvári, T. Petkova, A. Stoilova, A. Schöps, J. Bednarcik, B. Beuneu

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

As34Se51Ag15 and As34Te 51Ag15 glasses have been studied with high energy X-ray diffraction, neutron diffraction and extended X-ray absorption spectroscopy. The experimental data were modeled simultaneously with the reverse Monte Carlo simulation method. The combination of these independent measurements together with the application of some plausible physical constraints allowed the separation of the partial pair correlation functions and the estimation of the coordination numbers. An analysis of the results revealed that Ag-Se/Te bonds are preferred to Ag-As ones. The chemically ordered structure of As 2Se3 remains essentially intact in As34Se 51Ag15, while for As34Te51Ag 15 alloying with Ag results in an increase of As-As and Te-Te bonds.

Original languageEnglish
Title of host publicationNanostructured Materials for Advanced Technological Applications
EditorsJohann Peter Reithmaier, Plamen Petkov, Wilhelm Kulisch, Cyril Popov
Pages341-351
Number of pages11
DOIs
Publication statusPublished - Dec 1 2009

Publication series

NameNATO Science for Peace and Security Series B: Physics and Biophysics
ISSN (Print)1874-6500

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Keywords

  • AsSe
  • AsTe
  • Atomic structure
  • Chalcogenide glasses
  • Silver

ASJC Scopus subject areas

  • Biotechnology
  • Biophysics
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

Cite this

Kaban, I., Hoyer, W., Jóvári, P., Petkova, T., Stoilova, A., Schöps, A., Bednarcik, J., & Beuneu, B. (2009). Atomic structure of As34Se51Ag15 and As34Te51Ag15 glasses studied with Xrd, Nd and exafs and modeled with Rmc. In J. P. Reithmaier, P. Petkov, W. Kulisch, & C. Popov (Eds.), Nanostructured Materials for Advanced Technological Applications (pp. 341-351). (NATO Science for Peace and Security Series B: Physics and Biophysics). https://doi.org/10.1007/978-1-4020-9916-8-37