Improvement of Permittivity, Electric Modulus, and Permeability of BariumNanoparticles Ferrite with Nonmagnetic ions )Zn+2)

Abstract

The effects of composition, temperature, and frequency-dependent dielectrics Properties of barium-nickel-based ferrites have been investigated. The conventional ceramic technique prepared the compositions BaNi2-xZnxFe16O27 (x = 0.0, 0.4, 1.2, and 2). The relatively high values of the dielectric constant at low frequencies are due to the interfacial polarization, which ensures that the samples can be fairly considered to be formed of well-conducting grains and poorly-conducting grain boundaries according to Koop's model. Dielectric results showed that zinc concentration at the composition x = 0.4 is sufficient to reduce the dielectric constant and loss tangent at low frequencies. Overall, the dielectric properties of this sample made them a suitable candidate for flexible supercapacitors and are best suited for high-frequency region applications. The existence of gradually shifted shoulders in the tan vs. temperature curves towards higher frequencies ensures the presence of two types of charge carriers. The results indicate that the initial permeability of the synthesized sample ferrites increases with increasing zinc ion concentration. The initial magnetic permeability decreases as Zn2+ ion substitution increases. The substitution of Zn ions greatly enhanced the dielectric constant, dielectric loss, as well as initial permeability.