Conductivity of lithium-substituted silver antimonate

Substitution of lithium for silver in silver antimonate was done up to 0.16 lithium by soft chemistry or solid state chemistry. The variation of the conduction was followed by impedance (AC) and resistance (DC) measurements up to 750 K. Below 580 K, the conduction of the silver antimonate is dominat...

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Bibliographic Details
Published in:Solid state ionics 1998-02, Vol.106 (3), p.315-320
Main Authors: Bourset, H, Salles, P, Savariault, J.-M
Format: Article
Language:English
Subjects:
Antimony oxide
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Conductivity
Diffusion in solids
Electronic transport in condensed matter
Exact sciences and technology
Lithium
Mixed conductivity and conductivity transitions
Physics
Pyrochlore
Self-diffusion and ionic conduction in nonmetals
Silver
Transport properties of condensed matter (nonelectronic)
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Summary:Substitution of lithium for silver in silver antimonate was done up to 0.16 lithium by soft chemistry or solid state chemistry. The variation of the conduction was followed by impedance (AC) and resistance (DC) measurements up to 750 K. Below 580 K, the conduction of the silver antimonate is dominated by electronic conduction and above, ionic conduction due to silver hopping across the vacancies of the pyrochlore structure is observed. In the substituted compounds, the electronic conductivity decreases when the level of lithium increases and ionic conductivity due to lithium is superimposed up to 580 K. Above, a conduction process by polaron including both silver and lithium is proposed.
ISSN:0167-2738
1872-7689
DOI:10.1016/S0167-2738(97)00508-0