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Dielectric response of ionic conductors

Conference ·
OSTI ID:6030853
Impedance measurements on (ZrO/sub 2/)/sub 0.87/(Y/sub 2/O/sub 3/)/sub 0.13/ in the range from 0.1 Hz to 10 MHz reveal an apparent frequency dependent conductivity that is typical of ionic conductors. Analysis of the impedance and the dielectric permittivity using empirical expressions for dielectric relaxation such as the Havriliak-Negami function shows that the frequency dependence of the conductivity can be attributed to dipole relaxation of defects, possibly (V/sub 0/Y)-Y' pairs, with relaxation times that are determined by the hopping rate of oxygen vacancies.
Research Organization:
Oak Ridge National Lab., TN (USA)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
6030853
Report Number(s):
CONF-8709116-4; ON: DE87013552
Country of Publication:
United States
Language:
English

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