Hopping and non-hopping localized ionic motion: β-AgI and β-Ag3SI

Funke, K and Kantimm, T and Maue, T and Zurwellen, D and Shukla, AK (1990) Hopping and non-hopping localized ionic motion: β-AgI and β-Ag3SI. In: 7TH INTERNATIONAL CONF ON SOLID STATE IONICS, NOV 05-11, 1989, HAKONE, JAPAN.

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Abstract

In β-AgI and β-Ag3SI the ionic conductivity has been measured at frequencies from 1kHz to 2.6 GHz and from 10 MHz to 10 THz, respectively. In both phases we observe a conductivity increase of some orders of magnitude, due to localized types of motion of the silver ions. In β-AgI the increase is found at about 1 MHz and reflects cooperative back-and-forth hopping processes between adjacent tetrahedral sites. In β-Ag3SI the phenomenon occurs at microwave frequencies. Here it is caused by a non-hopping, non-periodic localized Ag+-motion within shallow potentials.

Item Type:	Conference Paper
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:	14 Mar 2011 08:51
Last Modified:	11 Jan 2013 11:12
URI:	http://eprints.iisc.ac.in/id/eprint/35066

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