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Article
Thermal effects on the magnetic properties of titanium modified cobalt ferrite
Journal of Applied Physics
  • Ikenna C. Nlebedim, Iowa State University
  • David C. Jiles, Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
1-1-2015
DOI
10.1063/1.4919229
Abstract

The temperature dependence of the magnetic properties of titanium modified cobalt ferrite is presented. The change of maximum magnetization obtained at H ≈ 2.4 MA/m between any two temperatures increases systematically with composition, which is desirable for applications in devices. Variation in magnetocrystalline anisotropy and coercivity were different from previous studies on cation substituted cobalt ferrite. At lower concentrations, the effect of lower thermal energy dominated the effect of non-magnetic cation substitutions in controlling the anisotropy.The reverse was the case at higher concentrations. The temperature dependence of coercivity is dominated by the contribution of magnetocrystalline anisotropy to coercivity, while the compositional dependence of coercivity is dominated by microstructural contribution through the pinning of domain walls.

Comments

The following article appeared in Journal of Applied Physics 117 (2015): 17A506 and may be found at http://dx.doi.org/10.1063/1.4919229.

Rights
Copyright 2015 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.
Copyright Owner
American Institute of Physics
Language
en
Date Available
2015-07-17
File Format
application/pdf
Citation Information
Ikenna C. Nlebedim and David C. Jiles. "Thermal effects on the magnetic properties of titanium modified cobalt ferrite" Journal of Applied Physics Vol. 117 Iss. 17 (2015) p. 17A506
Available at: http://works.bepress.com/david_jiles/147/