Impact of V substitution on the physical properties of Ni–Zn–Co ferrites: structural, magnetic, dielectric and electrical properties

Abstract

We have investigated the Vanadium- (V) substituted Ni–Zn–Co ferrites where the samples are prepared using the solid-state reaction technique. The impact of V5+ substitution on the structural, magnetic, dielectric and electrical properties of Ni–Zn–Co ferrites has been studied. The XRD analysis confirms the formation of a single-phase cubic spinel structure. The lattice constants have been calculated both theoretically and experimentally along with other structural parameters such as bulk density, x-ray density and porosity. The FESEM images are studied for analyzing the surface morphology. FTIR measurement confirms spinel structure formation. The saturation magnetization (M s), coercive field (H c) and Bohr magnet on (μ B) are calculated from the obtained M-H loops. The temperature-dependent permeability is studied to obtain the Curie temperature. The frequency and the composition dependence of permeability are also analyzed. Frequency dependent dielectric behavior and ac resistivity are also investigated. An inverse relationship is observed between the composition dependent dielectric constant and ac resistivity. The obtained results such as the electrical resistivity, dielectric constants and magnetic properties suggest the appropriateness of the studied ferrites in microwave device applications.

Investigation of structural, electrical, and magnetic variations of Ni-Zn-Co ferrites by substituting rare earth Ho3+ for high-frequency applications

“…In the investigation conducted by Hossain et al [34], V -substituted Ni-Zn-Co ferrites were studied, revealing that incorporating V 5+ ions in the lattice to replace Fe 3+ resulted in improvements in saturation magnetization intensity, coercive force, and resistivity suggesting the appropriateness of the synthesized ferrites in microwave device applications. Another study by Mohapatra et al [35] highlighted that doping NiZn ferrites with Co 2+ ions resulted in a giant coercivity and high effective magnetocrystalline anisotropy at low temperatures of 5 K. Hossain et al's research confirmed Ferromagnetic to paramagnetic phase transition in Gdsubstituted Ni-Zn-Co ferrites [36].…”

Investigation on the micro-structure and magnetic properties of LMZBS-Bi2O3 doped low-temperature sintered NiCuZn ferrites

“…Soft magnetic ferrites are widely used as basic support materials in communication and electronic information industries [1][2][3][4][5]. In recent years, with the rapid development of communication and electronic information technology, electronic equipment and instruments continue to miniaturize, integrate and high-frequency development, which not only increases the demand for high-performance soft magnetic ferrite materials, but also requires soft magnetic ferrite materials to develop in the direction of high frequency, high permeability and low power loss [6][7][8].…”