Effect of Sintering Temperature on the Structural and Magnetic Properties of Cobalt Ferrite Nanoparticles
Abstract
Cobalt ferrite nanoparticles have been synthesized by the sol-gel method. The prepared sample was sintered at four different temperatures (300 ˚ C, 400 ˚ C, 500 ˚ C and 700 ˚ C) for four hours. The structural charac- terizations of all the prepared samples were done using XRD, TEM and FTIR. Crystallite size was found to increase with sintering temperature and this can be attributed to the grain growth of the particles. The par- ticle size of each sample was determined using TEM. The FTIR spectra show two strong absorption bands in the range of 1000–400 cm−1, characteristic of spinel ferrites. The room temperature magnetic measurements showed a strong influence of sintering temperature on saturation magnetization and coercivity
Supporting agencies: SX acknowledges the University Grants Commission of India for providing teacher fellowship. EMM thanks DST and UGC for the financial support. Authors thank SAIF, CUSAT Kochi, SAIF, IIT Madras and SAIF IIT Mumbai for providing XRD, FTIR, VSM and TEM measurement facilities.
About the Authors
Sheena Xavier
Maharaja’s College
Ernakulam, Kerala
India
India
Research Department of Physics
Smitha Thankachan
Maharaja’s College
Ernakulam, Kerala
India
India
Research Department of Physics
Binu P. Jacob
Maharaja’s College
Ernakulam, Kerala
India
India
Research Department of Physics
E. M. Mohammed
Maharaja’s College
Ernakulam, Kerala
India
India
Research Department of Physics
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Review
For citations:
Xavier Sh., Thankachan S., Jacob B.P., Mohammed E.M. Effect of Sintering Temperature on the Structural and Magnetic Properties of Cobalt Ferrite Nanoparticles. Nanosystems: Physics, Chemistry, Mathematics. 2013;4(3):430-437.
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