Preparation and Study of the Physical Properties of Advanced Composites Ferrites Doped with Ferroelectric Materials as Electromagnetic Wave Detectors

O. M. Hemeda; E. M. Ahmed; H. E. Hassan

doi:10.15866/irephy.v7i4.4448

Preparation and Study of the Physical Properties of Advanced Composites Ferrites Doped with Ferroelectric Materials as Electromagnetic Wave Detectors

O. M. Hemeda^(1*), E. M. Ahmed⁽²⁾, H. E. Hassan⁽³⁾

^(*) Corresponding author

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Abstract

Magnetoelectric composites (1-x)Ni0.6Zn0.4Fe2O4+(x)(BaTiO3) (where x=0.0%,20%, 40%, 60% , 80% and 100%BT content) were prepared by using a conventional ceramic double-sintering method. Phase analysis was carried out using the x-ray diffraction technique, which confirms a cubic spinel structure for the ferrite and tetragonal perovskite structure for the ferroelectric phase. In order to confirm the formation of NZF phase into the BT phase; the IR spectra of the composite samples were recorded. The variation of the dielectric constant (ε') and loss tangent (tan δ) as a function of temperature were studied. The conduction phenomenon is explained on the basis of a small polaron hopping model. The dc resistivity was measured as a function of temperature in the range from room temperature to 700 °C. The static magnetoelectric conversion factor (dE/dH)H was measured as a function of the magnetic field. All composites show a linear increase of magnetoelectric conversion in the presence of a static magnetic field.
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Keywords

Magnetoelectric Composites; Piezoelectric; Piezomagnetic; Magnetoelectric Conversion Factor

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