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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