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- Article name
- Dielectric relaxation in ferroelectric lead material with ferroelectric and magnetic ordering
- Authors
- REZNICHENKO L. A., , ilich001@yandex.ru, Research Institute of Physics of Southern Federal University, Rostov-on-Don, Russia
PAVLENKO A. V., , ilich001@yandex.ru, Research Institute of Physics, Southern Federal University, Rostov-on-Don, Russia
KONSTANTINOV G. M., , , Regional branch of the Central Forensic expertsof the customs administration, Rostov-on-Don, Russia
TURIK A. V., , turik@sfedu.ru, Research Institute of Physics, Southern Federal University, Rostov-on-Don, Russia
KUPRINA Yu. А., , kuprins@rambler.ru, Research Institute of Physics, Southern Federal University, Rostov-on-Don, Russia
- Keywords
- complex permittivity / dielectric relaxation / spectrum / ceramics
- Year
- 2012 Issue 2 Pages 61 - 64
- Code EDN
- Code DOI
- Abstract
- The temperature-frequency dependences of the real and imaginary parts of complex permittivity ε* = ε' - iε'' of Bi0.5La0.5MnO3 ceramics at temperatures T = 10-200 K in the frequency range f = 102-106 Hz were investigated. It is shown that at temperatures of 10-120 K relaxation extremes formed on the curves ε''(f, T). One can satisfactory generate the experimental spectra of ε* with the dielectric model functions with the rectangle and Davidson-Cole relaxation time distributions. The possible mechanisms of dielectric relaxation are discussed.
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