Effect of AgI doping on electrical conductivity and dielectric relaxation in silver phosphate glass nanocomposite systems

Biswas, Dipankar; Ningthemcha, R.K. Nanao; Singh, Loitongbam Surajkumar; Mondal, Rittwick; Kabi, Soumyajyoti; Das, Anindya Sundar

doi:10.1016/j.physb.2020.412486

Cited by 11 publications

(1 citation statement)

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“…This behaviour of dielectric constant with frequency is in line with earlier reports on AgI and its compounds. 29,30 It has been attributed to Ag-ion migration and oscillations of free dipoles under applied ac field, that is, the difference in the nature of response of the dipoles to the applied filed at low and high frequencies. 30 Conductivity and dielectric constant as a function of carbon concentration.-Before discussing the results of the superionic phase, we fist show the observations for the normal (β) phase to compare with superionic state.…”

Section: R R Rmentioning

confidence: 99%

AC Conductivity and Dielectric Constant of Fast Ion-Electronic Conductor AgI-C

Jayakrishnan,

Mishra,

Selvamani

et al. 2023

ECS J. Solid State Sci. Technol.

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The conductivity, dielectric constant and crystal structure of the superionic-electronic conductor AgI-porous carbon composites have been investigated at various temperatures and carbon concentrations (ϕ ≤ 10%). At a fixed temperature, both conductivity and dielectric constant exhibit anomalous variation with ϕ showing maxima of the values. We observed significant differences in the behavior between the superionic (α) phase and insulating (β) phase. By incorporating carbon, the conductivity increases by four times in the β phase and six times in the α phase whereas the dielectric constant increases by five times and eight times respectively. Unlike in the β phase, the conductivity of the α phase exhibits two distinct maxima whereas the dielectric constant exhibits different features of the profiles in different frequency regions in the α phase. Also, the peak value of these properties exhibits power-law dependence on the frequency in both phases but with different values for the exponents.

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Section: R R Rmentioning

confidence: 99%