First observation of a residual inter-cationic correlation in the 'super'-ionic conductor, Ag9GaSe6: Ag-109-Ag-107 double-resonance NMR study of ion dynamics

Authors
Tansho, M Fyfe, CA Grondey, H Markus, T Wada, H
Citation
M. Tansho et al., First observation of a residual inter-cationic correlation in the 'super'-ionic conductor, Ag9GaSe6: Ag-109-Ag-107 double-resonance NMR study of ion dynamics, SOL ST ION, 132(1-2), 2000, pp. 87-92
Citations number
37
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE IONICS
ISSN journal
01672738 → ACNP
Volume
132
Issue
1-2
Year of publication
2000
Pages
87 - 92
Database
ISI
SICI code
0167-2738(200007)132:1-2<87:FOOARI>2.0.ZU;2-1
Abstract
A double-resonance nuclear magnetic resonance, NMR, signal between the very mobile nuclei of a superionic conductor has been detected for the first ti me in a silver conductor. The heteronuclear double-resonance signal between mobile nuclei should not be observed in the fast motion limit if the inter -cationic interactions are completely removed. However, a Ag-109-Ag-107 dou ble-resonance signal has in fact been observed in a superionic conductor of 0.1-1 S m(-1), namely Ag9GaSe6. This implies that the cationic motion is c orrelated in this solid electrolyte and some residual interactions, perhaps including chemical bonds among very mobile cations, may remain even in the fast motion limit. (C) 2000 Elsevier Science B.V. All rights reserved.