Simulation and scaling of ac conductivities in ion-conducting glasses

Doi, Akira

doi:10.1016/j.jnoncrysol.2006.02.031

Cited by 2 publications

(2 citation statements)

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“…5 .shows the scaled conductivity data of La 2 Mo 2 O 9 . It is observed that the AC conductivity curves obtained at different temperatures shrinks into a master curve indicating temperature independence of ionic conduction mechanism [19].…”

Section: Resultsmentioning

confidence: 99%

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Ion dynamics study of La2Mo2O9

Basu

Maiti

2009

Ionics

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Although the conductivity measurement on La 2 Mo 2 O 9 is well documented, the ion dynamic study is scarcely reported. Here, we report on the AC impedance measurement of La 2 Mo 2 O 9 in the light of ion dynamics. We have examined the low-temperature regime, 250°C to 500°C, i.e., basically the characteristics of low-temperature α form, on the basis of frequency dispersion of conductivity as well as in terms of modulus formalism. The relationship of the values of the exponential parameter, s of universal dielectric response (UDR), and the stretching exponent, β of Kohlrausch-Williams-Watts (KWW), were evaluated from curve fitting. The temperature dependence of such parameters is checked and is interpreted for the plausible mechanism of ionic motion in the material at low temperature.

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Section: Resultsmentioning

confidence: 99%

“…The remains independent of temperature as the broadness of the peak does not vary considerably with temperature. The frequency-dependent conductivity data at various temperatures are scaled by means of ω O , the frequency of M″ peak on the frequency axis and the σ DC on the AC conductivity axis as described by Doi et al [19]. The Fig.…”

Section: Resultsmentioning

confidence: 99%