Abstract
Nanostructured ferrite spinels MFe2O4 (M = Ni, Co, Zn and Cu) were successfully synthesized via a chemical co-precipitation method. The structure, composition, optical, morphology and magnetic properties of the samples were characterised. The thermal decomposition of the MFe2O4 was investigated by TGA\DTA. X-ray diffraction (XRD) confirmed the formation of single phase MFe2O4 (M = Ni, Co, Zn and Cu) with space group Fd-3m and spinel structure and the crystallite size were found to be between 25 and 41 nm. SEM and TEM images showed cubic-like nanostructure. The Fourier transform infra-red (FT-IR) spectroscopy showed absorption bonds, which were assigned to the vibration of tetrahedral and octahedral complexes. Raman spectroscopy is used to verify that we have synthesized ferrite spinels and determines their phonon modes. The optical study UV–visible is used to calculate the band gap energies. The vibrating sample magnetometer (VSM) was used to obtain the hysteresis parameters.
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More From: Journal of Materials Science: Materials in Electronics
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