Super-linear frequency dependence of ac conductivity of disordered Ag2S–Sb2S3at cryogenic temperatures

Tiwari, J. P.; Shahi, K.

doi:10.1080/14786430701551913

Cited by 39 publications

(12 citation statements)

References 60 publications

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“…In order to comprehensively understand the behaviour of the conduction process, data were analyzed using the modified power law [32] of the ac conduction, Eq. (7):…”

Section: Electrical Conductivity Analysismentioning

confidence: 99%

Origin of giant dielectric constant in Ba[(Fe1−xCox)1/2Nb1/2]O3

Shah

Mehta

Desai

et al. 2011

Journal of Alloys and Compounds

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“…In order to comprehensively understand the behaviour of the conduction process, data were analyzed using the modified power law [32] of the ac conduction, Eq. (7):…”

Section: Electrical Conductivity Analysismentioning

confidence: 99%

Origin of giant dielectric constant in Ba[(Fe1−xCox)1/2Nb1/2]O3

Shah

Mehta

Desai

et al. 2011

Journal of Alloys and Compounds

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“…The value of exponent n tells about the different types of ion conduction processes occurring in the disordered materials. 50 This law was applicable for most of the disordered materials, such as glasses, 51 ceramics, 52 polymers 53 and composites 54 and successfully explained the ion conduction and charge carrier dynamics. Recently, many experimental observations showed that n can attain value 1 or >1, corresponding to respectively, nearly constant loss (NCL) 55 and super linear power law (SLPL) 56 behavior.…”

Section: Frequency Dependent Ionic Conductivity Studymentioning

confidence: 99%

Studies on structural, thermal and AC conductivity scaling of PEO-LiPF6 polymer electrolyte with added ionic liquid [BMIMPF6]

et al. 2015

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Preparation and characterization of polymer electrolyte films of PEO+10wt.% LiPF 6 +xwt.% BMIMPF 6 (1-butyl-3-methylimidazolium hexafluorophosphate) containing dopant salt lithium hexafluorophosphate (LiPF 6 ) and ionic liquid (BMIMPF 6 ) having common anion PF -6 are reported. The ionic conductivity of the polymer electrolyte films has been found to increase with increasing concentration of BMIMPF 6 in PEO+10 wt.% LiPF 6 due to the plasticization effect of ionic liquid. DSC and XRD results show that the crystallinity of polymer electrolyte decreases with BMIMPF 6 concentration which, in turn, is responsible for the increase in ionic conductivity. FTIR spectroscopic study shows the complexation of salt and/or ionic liquid cations with the polymer backbone.

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“…More focused studies in this frequency window are needed to elucidate the connection between vibrational and librational (anharmonic) motion, as well as to better characterize the precise frequency dependence of the NCL conductivity, i.e., is it exactly linear (n = 1), slightly sub-linear (n < 1, n ∼ = 1) or slightly super-linear (n > 1, n ∼ = 1)? 169,170,171,172 …”

Section: 167168mentioning

confidence: 99%

Fundamental questions relating to ion conduction in disordered solids

et al. 2009

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A number of basic scientific questions relating to ion conduction in homogeneously disordered solids are discussed. The questions deal with how to define the mobile ion density, what can be learned from electrode effects, what is the ion transport mechanism, the role of dimensionality, and what are the origins of the mixed-alkali effect, of time-temperature superposition, and of the nearly-constant loss. Answers are suggested to some of these questions, but the main purpose of the paper is to draw attention to the fact that this field of research still presents several fundamental challenges.

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Super-linear frequency dependence of ac conductivity of disordered Ag₂S–Sb₂S₃at cryogenic temperatures

Cited by 39 publications

References 60 publications

Origin of giant dielectric constant in Ba[(Fe1−xCox)1/2Nb1/2]O3

Origin of giant dielectric constant in Ba[(Fe1−xCox)1/2Nb1/2]O3

Studies on structural, thermal and AC conductivity scaling of PEO-LiPF6 polymer electrolyte with added ionic liquid [BMIMPF6]

Fundamental questions relating to ion conduction in disordered solids

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