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Effect of Er-doping on structural, magnetic and dielectric properties of nano CoFe2O4

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Abstract

Nano Er-doped CoFe2O4 has been synthesized by a sol–gel procedure at 700 °C. The effect of Er-doping on the lattice parameter, bond lengths and bond angles has been investigated using Rietveld refinement method. Bertau method has been used to determine the distribution of different cations between tetrahedral and octahedral sites. The saturation magnetization, remanence magnetization, coercivity and anisotropy constant were reduced as the amount of Er-doping increased. The variations of dielectric characteristics with changing Er-doped amount and frequency have been examined in details.

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Authors and Affiliations

  1. Physics Department, Faculty of Science, Taibah University, Al‑Madina al Munawarah , Saudi Arabia

    Mohamed Bakr Mohamed

  2. Physics Department, Ain Shams University, Faculty of Science, Cairo, Egypt

    Mohamed Bakr Mohamed

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  1. Mohamed Bakr Mohamed
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Correspondence to Mohamed Bakr Mohamed.

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Mohamed, M.B. Effect of Er-doping on structural, magnetic and dielectric properties of nano CoFe2O4. Appl. Phys. A 125, 756 (2019). https://doi.org/10.1007/s00339-019-3048-0

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