Local order of Ag in AgI-Ag2MoO4 glasses: an EXAFS study

Authors
Ghigna, P Di Muri, M Mustarelli, P Tomasi, C Magistris, A
Citation
P. Ghigna et al., Local order of Ag in AgI-Ag2MoO4 glasses: an EXAFS study, SOL ST ION, 136, 2000, pp. 479-481
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE IONICS
ISSN journal
01672738 → ACNP
Volume
136
Year of publication
2000
Pages
479 - 481
Database
ISI
SICI code
0167-2738(200011)136:<479:LOOAIA>2.0.ZU;2-3
Abstract
Silver iodomolybdates are under investigation in order to define a transpor t model for AgI-based oxide glasses. In this paper we report a preliminary EXAFS study on a glass of composition 0.66AgI:0.33Ag(2)MoO(4). The EXAFS Fo urier transform shows two peaks that are attributed to the coordination wit h oxygen (Ag-O distance 2.38(1) Angstrom, coordination number 1.5(3)) and i odine (Ag-I distance 2.830(5) Angstrom, coordination number 1.5(3)), respec tively. The present coordination numbers confirm our previous Ag-109 NMR re sults. (C) 2000 Elsevier Science B.V. All rights reserved.