Abstract
Samples having the composition BaFe12−2xCoxSmxO19 (x = 0.0, 0.2, 0.4, 0.6) are prepared by a WOWS (without water and surfactants) sol–gel technique, and the structural, morphological, and AC and DC electrical and magnetic properties of the samples are investigated. The phase formation of M-type hexaferrite is studied by using indexed x-ray diffraction patterns. Scanning electron microscopy images show that the particle size of the synthesized nanopowder varies from 295 nm to 440 nm. The dielectric constant (ε′) exhibits a decreasing trend while the dielectric loss (tan δ) increases with increased doping. DC electrical resistivity (ρDC) is investigated in a temperature range of 373–673 K and indicates an increasing trend with doping. The magnetic hysteresis loops reveal an increase in saturation magnetization (Ms) and remanence (Mr), and a decrease in coercivity (Hc), with the increase in doping content.
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Applied Thermal Physics Laboratory (ATPL), Department of Physics, COMSATS Institute of Information Technology Islamabad is acknowledged for their kind cooperation.
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Asghar, G., Asri, S., Khusro, S.N. et al. Enhanced Magnetic Properties of Barium Hexaferrite. J. Electron. Mater. 49, 4318–4323 (2020). https://doi.org/10.1007/s11664-020-08125-7
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DOI: https://doi.org/10.1007/s11664-020-08125-7