Document Type
Article
Publication Version
Published Version
Publication Date
2015
Journal or Book Title
Journal of Applied Physics
Volume
117
Issue
17
First Page
17A506
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.
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
Copyright Date
2015
Language
en
File Format
application/pdf
Recommended Citation
Nlebedim, Ikenna C. and Jiles, David C., "Thermal effects on the magnetic properties of titanium modified cobalt ferrite" (2015). Electrical and Computer Engineering Publications. 54.
https://lib.dr.iastate.edu/ece_pubs/54
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.