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- W2810196902 abstract "The ac conductivity and dielectric properties on CoFe 2−x Mn x O 4 for x = 0.00, 0.10, 0.15 and 0.20 have been studied in detail. All the samples were prepared in nanocrystalline size. These materials are found to be crystallized to Fd <mml:math display=block> <mml:semantics> <mml:mover accent=true> <mml:mi>3</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:semantics> </mml:math> m space group in cubic spinel structure. The dielectric constant and ac conductivity has been discussed as a function of frequency, temperature and composition. The relation between dielectric constant and ac conductivity has been analyzed and the results validate each other. The frequency response of ac conductivity ( σ ac ) obeys Johnschers power law and the parameters obtained, explain the sources of ac and dc electrical conductivity in the material. The frequency response of σ ac follows Maxwell–Wagner two-layer model. The influence of frequency as pumping force on activation energy has been determined. The temperature dependent ac conductivity shows the Arrhenius behavior. The σ ac observed to be enhanced with increase in frequency as well as temperature. The semiconducting behavior (NTCR) was also evident from temperature dependent electrical transport properties study. The low value of ac conductivity suggests a possible use of this material in dielectric applications." @default.
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- W2810196902 date "2018-08-01" @default.
- W2810196902 modified "2023-09-27" @default.
- W2810196902 title "Dielectric and ac Conductivity Studies on Nanocrystalline Mn Modified Cobalt Ferrite" @default.
- W2810196902 doi "https://doi.org/10.1166/asl.2018.12164" @default.
- W2810196902 hasPublicationYear "2018" @default.
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