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Temperature dependence of magnetic properties of heat treated cobalt ferrite
Journal of Applied Physics
  • Cajetan Ikenna Nlebedim, Iowa State University
  • Y. Melikhov, Cardiff University
  • David C. Jiles, Iowa State University
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This study demonstrates the effectiveness of heat treatment in optimizing the magneticproperties of cobalt ferrite, compared to other methods such as cation substitution. It also shows how the magnetic properties of the heat treated cobalt ferrite vary under differenttemperature conditions. Saturation magnetization increased more due to heat treatment than due to Zn-substitution; a cation substitution that is known to result in high saturationmagnetization in ferrites. A remarkable observation is that the increase in the saturationmagnetization due to heat treatment was not at the expense of Curie temperature as was often reported for cation substituted materials. The observed variations in the magnetic propertieswere explained on the basis of cation redistribution arising as a result of the heat treatment.

The following article appeared in Journal of Applied Physics 115 (2014): 043903 and may be found at

Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
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American Institute of Physics
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Cajetan Ikenna Nlebedim, Y. Melikhov and David C. Jiles. "Temperature dependence of magnetic properties of heat treated cobalt ferrite" Journal of Applied Physics Vol. 115 Iss. 4 (2014) p. 043903
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