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Esir, S; Baykal, A; Sozeri, H
Journal of superconductivity and novel magnetism, 05/2014, Letnik: 27, Številka: 5Journal Article
Nanoparticles (NPs) of CoFe sub(2)O sub(4), which is a well-known spinel ferrite and hard magnetic material with very high cubic magnetocrystalline anisotropy, were synthesized by co-precipitation method. The effect of different molecular weights of polyethyleneglycol (PEG) on the magnetic properties and crystallite size of CoFe sub(2)O sub(4) NPs was investigated by using PEG-400, PEG-10.000 and, PEG-20.000. Crystalline structure and size of CoFe sub(2)O sub(4) NPs were studied using X-ray diffraction (XRD). The VSM studies showed that the saturation magnetization (M sub(s )) and coercivity (H sub(c )) of the CoFe sub(2)O sub(4) NPs depend on molecular weight of PEG.
