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Abstract
Aim: A series of nickel doped cobalt (NixCo1-xFe2O4, x=0.0 to 1.0) were successfully synthesized using green synthesized process.
Methods: Tensile strain of all positive slope samples observed from the W-H (Williamson Hall) plot. It was discovered that as Ni-substitution increased, the dielectric constant (є’) increased from 148.07 to 243.62. Conversely, when the amount of Ni-substitution increases, the dielectric loss (tan δ from 0.23 to 0.05), imaginary part (є’’ from 98.81 to 17.87), and ac conductivity (σac from 1.62 to 0.15) all decreases at 1MHz frequency.
Results: This demonstrates that when Ni-substitution increases, energy losses at high frequencies decrease. Dielectric constant and ac conductivity, of all samples act in accordance with Koop's theory, the Maxwell-Wagner polarization procedure, and electron hopping.
Conclusion: This makes them suitable materials for high-frequency applications.
