20Jul 2017

EFFECT OF COBALT FERRITE ON ELECTRICAL AND MAGNETIC PROPERTIES OF BISMUTH FERRITE.

  • Department of Physics, Manipur University, Canchipur-795003, India.
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The ferromagnetic material of bismuth ferrite and cobalt ferrite are synthesized by using the sol gel auto-combustion method. The different composites of bismuth and cobalt ferrite are prepared (1-x) BiFeO3-xCoFe2O4 (x=0.0, 0.2, 0.5, 0.8, 1). The samples are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and impedance spectroscopy. XRD pattern of bismuth ferrite and cobalt ferrite shows the rhombohedral and cubic spinel structure respectively. All the samples showed dispersion relation with frequency. The pure BFO sample shows the weak ferromagnetic properties with coercivity Hc= 209.51Oe and magnetization of Ms= 4.723 emu/g at room temperature. All the samples show the ferromagnetic nature and there is increase in both saturation magnetization and remanence magnetization with decrease in bismuth ferrite contents in the composite samples. However there is variation in coercivity and is found to be maximum for the composite sample with x=0.8. The current ? voltage (I-V) characteristic of BFO sample shows the non-ohmic nature while cobalt ferrite shows ohmic nature.

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[H. Hemanta and H. Basantakumar Sharma. (2017); EFFECT OF COBALT FERRITE ON ELECTRICAL AND MAGNETIC PROPERTIES OF BISMUTH FERRITE. Int. J. of Adv. Res. 5 (Jul). 1037-1046] (ISSN 2320-5407). www.journalijar.com

Huidrom Hemanta Singh
PhD

DOI:

Article DOI: 10.21474/IJAR01/4812      
DOI URL: http://dx.doi.org/10.21474/IJAR01/4812

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