Equivalent Circuit and AC conductivity of Sr1.75Co0.25P2O7 compound
Journal: Journal of Advances in Physics (Vol.11, No. 7)Publication Date: 2016-06-17
Authors : Adel Souissi; S. Guermazi;
Page : 3551-3556
Keywords : ionic conductivity; ceramic compound; pyrophosphate; impedance spectroscopy;
Abstract
Sr1.75Co0.25P2O7 compound was prepared by the solid-state reaction method. The impedance spectroscopy measurements were performed in the frequency and the temperature range of (209 Hz?1 MHz) and (622?704 K), respectively. Besides, the impedance spectra were fitted to an equivalent circuit consisting of series combination of grains and grain boundary. The AC conductivity for grain contribution is interpreted using the universal Jonscher’s power law. The approximation type OLPT model explains the universal behavior of the s exponent. The mechanism of conduction is probably due from the displacements of the Sr2+ ion in the tunnel-type cavities.
Other Latest Articles
- Carbon nanotube: An indirect ~ 0 eV band gap material
- On the theory of the passive impurity distribution in the turbulent air flow
- Spontaneous Photon Emissions in Photoreceptors: Potential Convergence of Arrhenius Reactions and the Latency for Rest Mass Photons to Accelerate to Planck Unit Energies
- Atomic disruption beam theory
- The Constitution Of Special Relativity
Last modified: 2016-06-20 15:05:36