Electrical conductivity and dielectric relaxation behavior of AgFeP2O7 compound

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

doi:10.1007/s11581-013-0969-z

Cited by 26 publications

(11 citation statements)

References 32 publications

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“…Extensive research work has been made in these diphosphate compounds like KAlP 2 O 7 , CsAlP 2 O 7 , NaInP 2 O 7 , and this interesting field has been grown due to the important characterization such as optical characterization [10]. Recent works were published during last two years on diphosphate materials such as KAlP 2 O 7 , NaAlP 2 O 7 and AgFeP 2 O 7 [11,13].…”

Section: Introductionmentioning

confidence: 99%

Conductivity study and correlated barrier hopping (CBH) conduction mechanism in diphosphate compound

et al. 2015

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In this paper, we report some physical properties of AgAlP 2 O 7 compound obtained through the standard solid-state reaction technique. AgAlP 2 O 7 has been studied by X-ray diffraction, Raman spectroscopy and impedance spectroscopy. The title compound crystallized at room temperature (T = 300 K) in the monoclinic system with P2 1/c space group. The electrical properties were studied over a wide range of temperature (440-640 K) in the frequency range of 40 Hz-10 MHz. Study of frequency dependence of AC conductivity suggests that the material obeys the Jonscher's universal dynamic law. The conductivity is equal to 9.37 9 10 -5 X cm -1 at 640 K, and it is thermally activated with activation energy of 0.76 eV. The variation of DC conductivity with temperature follows the Arrhenius behavior. The calculated values of s decreased with temperature. This behavior reveals that the conduction mechanism is correlated with barrier hopping. The binding energy W m and the hopping distance R x were deduced.

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Section: Introductionmentioning

confidence: 99%

Conductivity study and correlated barrier hopping (CBH) conduction mechanism in diphosphate compound

et al. 2015

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“…The hopping frequency h  of the charge carriers can be calculated from A.C. conductivity data using the formula [19]:…”

Section: Ac Conductivitymentioning

confidence: 99%

Electrical transport properties and modulus behavior of the organic–inorganic [N(C3H7)4]2SnCl6 compound

Hajlaoui

Chaabane

Oueslati

et al. 2015

Physica B: Condensed Matter

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“…The measurement of the ac response provides us with important information about the conduction process in the materials. From Z′ and Z″ values, we have deduced the variation of the ac conductivity (σ ac ) given by [21]:…”

Section: Impedance Studiesmentioning

confidence: 99%

“…Inorganic phosphates cover a large class of diverse materials whose applications include catalysts, solid electrolytes for batteries [6,7], ionic conductors [8], linear and non-linear optical components [9,10], and laser materials [11]. In this context, the A I B III P 2 O 7 compound, where A I is a monovalent element and B III is a trivalent element, forms a large family of materials [12,13]. Since the structures of these phosphates are diverse, it is difficult to classify them as a function of classical fundamental criteria such as cation size, coordination number, or chemical bonding.…”

Section: Introductionmentioning

confidence: 99%

ac conductivity and NSPT model conduction of KAlP2O7 compound

Taher

Oueslati

Gargouri

2014

Ionics

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The KAlP 2 O 7 compound was prepared by conventional solid-state reaction technique. The structure is confirmed by X-ray powder diffraction. The frequency-dependent electrical properties of the sample were investigated in the temperature range of 528-668 K and in the frequency range of 209 Hz-5 MHz by impedance spectroscopy. The ac conductivity has been fitted and studied using Jonscher's equation, whose exponent s varied with the temperature, showing that the non-overlapping small polaron tunneling (NSPT) is the suitable model to describe the electrical conduction mechanism. The variation of dc conductivity suggests Arrhenius type. Besides, the modulus data were analyzed using the Kohlrausch-Williams-Watts (KWW) stretched exponential function. The peak positions ω m of the above spectra shifted towards higher frequencies with the increase in temperature. Moreover, the value of activation energy for the bulk obtained from the analysis of equivalent circuit (1.11 eV) and modulus relaxation (0.91 eV) confirms that the transport is not due to a simple hopping mechanism and that the ion transport is probably due to the hopping of K + ions along [101] tunnels direction. The thermodynamic parameters were also calculated.

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Electrical conductivity and dielectric relaxation behavior of AgFeP2O7 compound

Cited by 26 publications

References 32 publications

Conductivity study and correlated barrier hopping (CBH) conduction mechanism in diphosphate compound

Conductivity study and correlated barrier hopping (CBH) conduction mechanism in diphosphate compound

Electrical transport properties and modulus behavior of the organic–inorganic [N(C3H7)4]2SnCl6 compound

ac conductivity and NSPT model conduction of KAlP2O7 compound

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