Control of the Size of Cobalt Ferrite Nanoparticles : Synthesis and Properties
نویسندگان
چکیده
The preparation of a fluid of cobalt ferrite particles having a size varying from 2 to 5nm is described. This bas been achieved by using functionalized surfactants. The size of cobalt femte particles decreases when the total reactant concentration decreases. The magnetic properties are described with magnetization curves and "Fe mossbauer spectroscopy. It is demonstrated that these particles are characterized by a superparamagnetic behavior.
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