Synthesis and microstructure of gallium substituted cobalt ferrite nanoparticles by hydrothermal method
by Gayathri Sivaraman; S. Kalainathan
International Journal of Nanoparticles (IJNP), Vol. 9, No. 1, 2016

Abstract: Magnetic CoFe_2-xGa_xO₄ nanoparticles were successfully synthesised via hydrothermal method. The samples were characterised by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM). The experimental results showed that the CoFe_2-xGa_xO₄ were composed of single phase spinel structure and the average crystallite size is between 42 and 57 nm. The saturation magnetisation (Ms) of the CoFe_2-xGa_xO₄ nanoparticles decreased linearly as the contents of Ga increased for x = 0.2-0.8 which can be used in sensor applications.

Online publication date: Mon, 22-Aug-2016

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