Synthesis and Magnetic Properties of La-Doped Ni Ferrites

Abstract:

Ni ferrites doped with lanthanum with a nominal composition of NiFe2-xLaxO4(x=0.05) were obtained by mechanochemical treatments using NiCO3•2Ni (OH)2•4H2O , La2O3 and Fe2O3 as raw materials. Both series of materials were characterised by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometry (VSM). The results indicated that the mixture became amorphous stage after ball-milled for 30 h, and single phase NiFe1.95La0.05O4 could be obtained after calcined at 700 for 2 h. The addition of lanthanum resulted in a reduction of all the magnetic parameters evaluated.

• Periodical: Advanced Materials Research (Volumes 148-149)
• Pages: 736-739
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.148-149.736
• Online since: October 2010
• Authors: Ju Hua Luo
• Keywords: La Doping, Magnetic Property, Ni-Ferrites, Synthesis

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