Static Magnetic Properties of Nanocrystalline Co-Ti Doped Barium Ferrite BaFe₁₂-₂ₓCoₓTiₓO₁₉ (X = 0.8)
We have studied the static magnetic properties of nanocrystalline Co-Ti doped barium ferrite BaFe10.4Co0.8Ti0.8O19. The zero-field-cooled (ZFC) and field-cooled (FC) processes show the typical features of a small particle system. The dependence on temperature of the coercive field is discussed within the scope of an aligned and random assembly of particles. The distribution of blocking temperatures is obtained from the remanent-to-saturation magnetization ratio, leading to the mean volume of the magnetic unit (≈(6±3)·104 A3), in agreement with the mean particle volume determined by TEM (≈1.1·105 A3). Remanence curves are used to derive the anisotropy field distribution and the interparticle magnetic interaction.
X. Batlle et al., "Static Magnetic Properties of Nanocrystalline Co-Ti Doped Barium Ferrite BaFe₁₂-₂ₓCoₓTiₓO₁₉ (X = 0.8)," IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers (IEEE), Jan 1994.
The definitive version is available at http://dx.doi.org/10.1109/20.312383
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