Abstract
Antimony (Sb3+) doped nickel ferrites have been synthesized by hydrothermal route using an autoclave at 160 ∘C for 12 hours. Pure spinel phase NiSb x Fe2−x O4 (x=0.0 to 0.1) with step increment of 0.035 has been prepared by sintering the precursor samples at 500 ∘C. Structural studies have been performed using X-ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). Lattice parameter and X-ray density found to increase with increase in the antimony concentration. Average crystallite size lies in the range of 14 to 24 nm ± 2 nm. Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) have been used to characterize the morphology and sizes of nanoparticles. Electrical properties were analyzed by measuring DC-electrical resistivity, complex dielectric permittivity, AC conductivity and complex electrical modulus analysis. DC resistivity of nickel ferrites decreases due to the substitution of antimony from 6.7×108 to 3.4×107 Ω-cm. Dielectric permittivity and losses were studied in the frequency range of 20 Hz–5 MHz and found to increase due to addition of Sb3+ in nickel nanoferrites at room temperature. High dielectric permittivity and conductivity made this material a compatible option for single-layered and multilayered chip inductors.
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The authors would like to acknowledge TWAS, Italy, Higher Education Commission (HEC) Islamabad Pakistan project No. 1326, for providing financial support for this work, and the Pakistan Science Foundation (PSF) project No. 147.
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Pervaiz, E., Gul, I.H. & Habib, A. Hydrothermal Synthesis, Structural and Electrical Properties of Antimony (Sb3+) Substituted Nickel Ferrites. J Supercond Nov Magn 27, 881–890 (2014). https://doi.org/10.1007/s10948-013-2364-4
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DOI: https://doi.org/10.1007/s10948-013-2364-4