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Cation Conductivity in Mixed Sulfate-Based and Mixed Iodide-Based Solids with Phase Transitions

Published online by Cambridge University Press:  16 February 2011

E. A. Secco
E. A. Secco*
Affiliation:
Department of Chemistry, St. Francis Xavier University, Antigonish, Nova Scotia, CANADA, B2G 2W5
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Abstract

The ac electrical conductivity versus temperature dependence of solids undergoing phase transitions incorporating various guest ions, viz isovalent cations and anions, ions with different ionic radius, ions with different polarizability, in Na2SO4-based, Ag2SO4-based, Li2SO4-based and U02SO4-based compositions along with MxTl(1x)I compositions for 1 ≤ x ≤ 0.13, whose M = K, Rb, Cs, are reported. An overview is given of the interplay of various factors, structural and non-structural, with their contribution limits impacting on locking-in the fast cation conductivity phase and the interpretation of fast-ion conductivity in the context of a percolation-type of ionstransport mechanism.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 369: Symposium U – Solid State Ionics IV , 1994 , 361
Copyright
Copyright © Materials Research Society 1995

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