Numerical Study of Enhanced Coercivity of a Magnetically Hard Grain With Thin Surface Layers Due to Antiferromagnetic Coupling

The effects of a thin ferromagnetic layer covering a magnetically hard grain on the coercivity were calculated based on micromagnetic theory. Antiferromagnetic exchange coupling between this thin ferromagnetic surface layer (SF layer) and the hard grain was found to prevent nucleation of reverse dom...

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Veröffentlicht in:	IEEE transactions on magnetics 2012-11, Vol.48 (11), p.3162-3165
Hauptverfasser:	Fukunaga, H., Yokoi, Y., Nakano, M., Yanai, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antiferromagnetic coupling coercive force Couplings Cross-disciplinary physics: materials science rheology Exact sciences and technology exchange coupling Grain IP networks Iron Magnetic domains Magnetism Magnetostatics Materials science nucleation Other topics in materials science permanent magnet Perpendicular magnetic anisotropy Physics
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