Cooperative localized hopping in β-AgI

Shukla, A. K. ; Funke, K. (1989) Cooperative localized hopping in β-AgI EPL: Europhysics Letters, 10 (5). pp. 471-476. ISSN 0295-5075

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Official URL: http://iopscience.iop.org/0295-5075/10/5/014

Related URL: http://dx.doi.org/10.1209/0295-5075/10/5/014

Abstract

The ionic conductivity of β-AgI has been measured at frequencies from 1 kHz to 2.6 GHz, at different temperatures. A marked increase of the conductivity is observed at about 1 MHz. The spectra are interpreted in terms of localized hopping processes of the silver ions, performed between neighbouring tetrahedral sites. From the spectra it is concluded that these processes are largely cooperative in character.

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