Biblio. IMN

Référence en vue solo

Withers, R. L., Noren, L., Welberry, T. R., Bindi, L., Evain, M. & Menchetti, S. (2008) A composite modulated structure mechanism for Ag+ fast ion conduction in pearceite and polybasite mineral solid electrolytes. Solid State Ion. 179 2080–2089. 
Added by: Laurent Cournède (2016-03-10 21:58:40)
Type de référence: Article
DOI: 10.1016/j.ssi.2008.07.008
Numéro d'identification (ISBN etc.): 0167-2738
Clé BibTeX: Withers2008
Voir tous les détails bibliographiques
Catégories: MIOPS
Mots-clés: Ag+ fast ion conduction, antimonpearceite, Composite modulated structure, crystal-chemistry, disorder, Electron diffraction study, polytypism, Solid electrolyte
Créateurs: Bindi, Evain, Menchetti, Noren, Welberry, Withers
Collection: Solid State Ion.
Consultations : 1/522
Indice de consultation : 3%
Indice de popularité : 0.75%
A careful electron diffraction investigation of pearceite-Tac and polybasite-Tac samples in the Ag+ fast ion conducting state reveals that the average hexagonal [Ag-9(I)]9(+) sub-structure in these mineral solid electrolyte systems is mutually incommensurable with respect to the remaining [(Ag-I,Cu-I)(6)(As-III,Sb-III)(2)S-7](2-)[(CuS4)-S-I](7-) framework sub-structure. It is shown how the mutual incommensurability of the two component substructures can be compatible with crystal chemical commonsense, with previously reported average structure refinements of these phases as well as providing an insight into their Ag+ fast ion conductivity at such low temperatures. In addition, Ag+/Cu+ ion ordering (and associated displacive shifts of the centreing S-2-ions) in the S2-(Ag,Cu)(6) octahedral sites is shown to provide a mechanism for low temperature superstructure ordering. (C) 2008 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède  
wikindx 4.2.2 ©2014 | Références totales : 2860 | Requêtes métadonnées : 57 | Exécution de script : 0.14094 secs | Style : Harvard | Bibliographie : Bibliographie WIKINDX globale