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Electrical conductivity and dielectric relaxation behavior of AgFeP2O7 compound

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Abstract

In the present study, AgFeP2O7 was prepared by a solid-state reaction method. Rietveld refinement of the X-ray diffraction pattern suggests the formation of the single phase desired compound with monoclinic structure at room temperature. Not only were the impedance spectroscopy measurements of our compound carried out from 209 Hz to 5 MHz over the temperature range of 553 K–698 K but its AC conductivity as well as the dielectric relaxation were evaluated. Impedance measurements show AgFeP2O7 an ionic conductor being the conductivity 1.04 × 10– 5(Ω– 1cm– 1) at 573 K. The conductivity and modulus formalisms provide nearly the same activation energies for electrical relaxation of mobile ions revealing that transport properties in this material appear to be due to an ionic hopping mechanism dominated by the motion of the Ag+ ions along tunnels presented in the structure of the investigated material.

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Authors and Affiliations

  1. Faculty of Sciences, Condensed Matter Laboratory, University of Sfax, B.P. 1171, 3000, Sfax, Tunisia

    S. Nasri, M. Megdiche, M. Gargouri & K. Guidara

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  1. S. Nasri
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  2. M. Megdiche
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  3. M. Gargouri
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  4. K. Guidara
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Correspondence to S. Nasri.

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Nasri, S., Megdiche, M., Gargouri, M. et al. Electrical conductivity and dielectric relaxation behavior of AgFeP2O7 compound. Ionics 20, 399–407 (2014). https://doi.org/10.1007/s11581-013-0969-z

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  • DOI: https://doi.org/10.1007/s11581-013-0969-z

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