Magnesium-Doped Cobalt-Zinc Ferrite: A Study on Enhanced Magnetic and Electrical Properties: Magnesium-Doped Cobalt-Zinc Ferrites

Editorial Board PCSS Journal; Y.Kolekar Ravikumar; S.B. Kapatkar; S.N. Mathad; Sh. Hegde

doi:10.15330/pcss.26.4.895-904

Authors

Y.Kolekar Ravikumar Physics Department, M.M.Arts & Science College, Sirsi (Uttara Kannada), Karnataka, India
S.B. Kapatkar Department Physics , K.L.E. Technological University, Vidyanagar, Hubballi, India
S.N. Mathad Department Physics , K.L.E. Technological University, Vidyanagar, Hubballi, India
Sh. Hegde Department of Studies In Physics, Mangalore University, Mangalore, India

DOI:

https://doi.org/10.15330/pcss.26.4.895-904

Keywords:

Magnesium-doped Cobalt Zinc ferrite (Mg-Co-Zn ferrite), Solid-state reaction, Thermogravimetry, Fourier Transform Infrared Spectra, Vibrating Sample Magnetometer, Two probe

Abstract

This research investigates the synthesis, characterization, and properties of magnesium-doped cobalt zinc ferrite (Mg-Co-Zn ferrite) composites prepared by solid state reaction. Thermal analysis through TGA/DTA revealed phase formation and thermal stability, with weight losses corresponding to water and chloride evaporation, and the formation of metal oxides confirmed at 850°C. FTIR spectra identified the spinel structure, highlighting the effects of Mg²⁺ ion doping on lattice vibrations and cationic redistribution. Magnetic properties were evaluated using hysteresis loops measured at room temperature, showing that Mg doping enhanced saturation magnetization (M_s) and coercivity (H_c), with superparamagnetic behavior observed at the nanoscale. Electrical properties, determined by the two-probe method, demonstrated increased DC resistivity with higher Mg content, attributed to the Verwey-deBoer hopping mechanism.The dielectric constant of Mg-doped Co-Zn ferrite systems varies with Mg content, frequency, and hopping conduction, with the highest value at x=0.08, attributed to Fe³⁺ ion migration. The study concludes that Mg-Co-Zn ferrite composites exhibit tunable magnetic and electrical properties, making them suitable for high-frequency applications, such as microwave absorption, magnetic recording, and advanced technological uses in biomedical fields, sensors, and memory devices.

Author Biography

S.B. Kapatkar , Department Physics , K.L.E. Technological University, Vidyanagar, Hubballi, India

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