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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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|
|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|
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