ac conductivity and dielectric relaxation studies in $AgI$-based fast ion conducting glasses

Shastry, MCR and Rao, KJ (1991) ac conductivity and dielectric relaxation studies in $AgI$-based fast ion conducting glasses. In: Solid State Ionics, 44 (4). pp. 187-198.

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Abstract

ac conductivity and dielectric relaxation in $AgI$-based fast ion conducting glasses have been examined in four systems: $AgI-Ag_2MoO_4$, $AgI-Ag_3AsO_4$, $AgI-AgPO_3$ and $AgI-Ag_20-V_2O_5$. Dielectric relaxation is examined using modulus formalism. Suitability of stretched exponential relaxation function has been investigated. Inverse relation has been found to exist between the stretching exponent and the structural unpinning number which characterizes fast ion conduction. Physical origin of correlated states, relevance of cluster-tissue model of glasses and the role of structural unpinning concept have been examined in the light of dielectric behavior of $AgI$-based glassy fast ion conductors.

Item Type:	Journal Article
Publication:	Solid State Ionics
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	23 Jun 2007
Last Modified:	16 Jan 2012 09:38
URI:	http://eprints.iisc.ac.in/id/eprint/11238

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