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- W3162190272 abstract "Single phase Ba3Co2Fe24O41 (Co2Z) and Ba2.8La0.2Co2Fe24O41 (La-Z) were prepared by solid state ceramic method. The dielectric, impedance and electric modulus were systematically investigated as a function of temperature from 50 °C–250 °C and in the frequency range of 1 Hz–1 MHz. Frequency dependent imaginary impedance and electric modulus implies that La3+ substitution significantly affect hopping and relaxation mechanism of charge carriers. Cole-Cole plots (Z vs Z') has been fitted with suitable equivalent circuit for both Co2Z & La-Z. The obtained grain and grain boundary resistances confirmed that charge carriers experienced lower resistance in La-Z. Arrhenius plots of relaxation time (τ) vs 1/T showed parallel conduction mechanism in system. Complex electric modulus spectrum distinguished the capacitive contribution of grain, grain boundary and electric effect. A very high magnetodielectric effect at low frequencies has been observed for La-Z." @default.
- W3162190272 created "2021-05-24" @default.
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- W3162190272 date "2021-08-01" @default.
- W3162190272 modified "2023-10-03" @default.
- W3162190272 title "Impedance spectroscopy and magneto-dielectric analysis of La3+ substituted Co2Z hexaferrite" @default.
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- W3162190272 doi "https://doi.org/10.1016/j.ceramint.2021.04.266" @default.
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