High magnetic performance in mechanically alloyed Co-substituted Fe3O4
- 12 December 1994
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 65 (24), 3135-3136
- https://doi.org/10.1063/1.112459
Abstract
Nanocrystalline Co0.5Fe2.5O4 has been prepared by mechanical alloying and subsequent vacuum annealing. Significant increase of coercivity was observed after a postannealing at low temperatures in air. Magnetic annealing resulted in anisotropic sample with a coercivity of 2.8 kOe and a remanence of 81% of the saturation magnetization, providing a theoretical maximum energy product of 4 MG Oe.Keywords
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