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http://dx.doi.org/10.4283/JMAG.2013.18.3.230

Effects of Solution Concentration on the Structural and Magnetic Properties of Ni0.5Zn0.5Fe2O4 Ferrite Nanoparticles Prepared by Sol-gel  

Yoo, B.S. (Department of Physics, Hankuk University of Foreign Studies)
Chae, Y.G. (Department of Physics, Hankuk University of Foreign Studies)
Kwon, Y.M. (Department of Physics, Hankuk University of Foreign Studies)
Kim, D.H. (Department of Physics, Hankuk University of Foreign Studies)
Lee, B.W. (Department of Physics, Hankuk University of Foreign Studies)
Liu, Chunli (Department of Physics, Hankuk University of Foreign Studies)
Publication Information
Journal of Magnetics / v.18, no.3, 2013 , pp. 230-234 More about this Journal
Abstract
The $Ni_{0.5}Zn_{0.5}Fe_2O_4$ nanoparticles about 30 nm were prepared using sol-gel method with metal nitrates dissolved in 2-methoxyathanol. The concentrations of the metal nitrates are adjusted from 0.1 to 0.75 M in order to study the influence on the structural and magnetic properties. The structure and morphology characterization revealed that the crystallinity was improved and the nanoparticle size was increased with the nutrition solution concentrations up to 0.5 M. Degraded crystallinity together with decreased nanoparticle size were observed for concentration of 0.75 M. The saturation magnetization at room temperature reached maximum at 0.5 M, which can be explained by considering the crystallinity and size effect.
Keywords
NiZn ferrite; nanoparticles; sol-gel; magnetization; concentration effect;
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