Reverse Monte-Carlo Analysis of neutron diffraction from AgI-Ag2S-AgPO3 superionic conducting glasses

Rhet Magaraggia, Shane Kennedy, Tony Tedesco, Evvy Kartini, Malcolm Collins, Keiji Itoh

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Neutron diffraction patterns from silver phosphate (AgPO3), AgI-AgPO3 and Ag2S-AgPO3 glasses were analysed by the Reverse Monte-Carlo method. The diffraction patterns were collected on the HIT-II spectrometer at KENS up to Q = 50 Å- 1. The derived structural models of the salt-doped glasses were compared to AgPO3 glass to correlate features of the atomic and molecular structure with observed superionic conduction in these glasses. A structural model based on extended chains of PO4 tetrahedra, as reported previously by other researchers, provides a solid basis for all these glasses. The analysis indicates a strengthening of the Ag-Ag correlations and contrasting changes in the Ag-O correlations in the doped glasses. We also conclude that S largely displaces non-bridging O in the PO4 tetrahedra in Ag2S-AgPO3 glass.

Original languageEnglish
Pages (from-to)263-265
Number of pages3
JournalPhysica B: Condensed Matter
Volume385-386 I
DOIs
Publication statusPublished - Nov 27 2006
Externally publishedYes

Keywords

  • AgS-AgI-AgPO
  • RMC
  • RMCA
  • Superionic glasses

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Reverse Monte-Carlo Analysis of neutron diffraction from AgI-Ag<sub>2</sub>S-AgPO<sub>3</sub> superionic conducting glasses'. Together they form a unique fingerprint.

  • Cite this