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Published in:
23-11-2017
Tuning the structural and magnetic properties on Cu/Cr nanoferrite using different rare-earth ions
Published in: Journal of Materials Science: Materials in Electronics | Issue 4/2018
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Abstract
Nano-crystalline rare earth ions doped Cu/Cr nanoferrites, with the general formula CuCr0.3R0.03Fe1.67O4 where R = Sm, Nd, Ce, and La, were prepared by the standard ceramic method. The structure was studied by X-ray diffraction analysis (XRD), Atomic force microscopy and High-resolution transmission electron microscopy. XRD analysis confirmed that the samples had cubic spinel structures. The morphology indicated that the samples were in the nanoscale form. The magnetic properties were studied at room temperature (300 K) and at low temperature (100 K) using vibrating sample magnetometer. The saturation magnetization (Ms) at 100 K was nearly twice than that at 300 K. The most suitable sample in the present work to be applied in many technological applications (especially in solid-oxide fuel cell electrodes) is La sample due to it has the highest saturation magnetization (Ms) and low coercivity (Hc).