The structural, dielectric and magnetic study of cobalt based spinel ferrites and polypyrrole composites

The CoFe2O4 was prepared via co-precipitation route, and in situ polymerization was used to prepare the polypyrrole, for the fabrication of nanocomposite. Two-point probe techniques, X-ray diffraction (XRD), as well as vibrating sample magnetometer (VSM) were used to investigate the electrical, magnetic, and structural characteristics of all the synthesized samples. In nanocomposites with higher ferrite concentrations, XRD peaks became more intense, and their widths becomes narrowed. The ferrite content enhanced the dc resistivity as well activation energy of the materials. The hysteresis loop identified the ferromagnetic property. The super paramagnetic behavior has been observed in samples PF1 (with 25% ferrites) and PF2 (having 50% ferrite ratio). These two samples might be employed in hyperthermia, which is a cancer therapy approach.

Automated summary

CoFe2O4 was synthesized via co-precipitation route and polypyrrole was prepared through in situ polymerization for the fabrication of nanocomposite. The electrical, magnetic, and structural characteristics of the synthesized samples were investigated using two-point probe techniques, X-ray diffraction, and vibrating sample magnetometer. XRD peaks became more intense and narrowed with the increase of ferrite concentrations in the nanocomposites, while the ferrite content enhanced the dc resistivity and activation energy of the materials. The samples PF1 and PF2 exhibited super paramagnetic behavior and could be used in hyperthermia for cancer therapy.