Magnetization and coercivity of antiferromagnetic particles

The magnetic behavior of antiferromagnetic particles, with sc and bcc lattice structures, has been studied using the Monte Carlo simulation technique. The magnetization of the particles is a surface effect. At very low temperatures the surface exchange field gives a high coercivity. At high temperat...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1998-07, Vol.34 (4), p.1120-1122
Main Authors: Trohidou, K.N., Zianni, X., Blackman, J.A.
Format: Article
Language:English
Subjects:
Anisotropic magnetoresistance
Antiferromagnetic materials
Coercive force
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Fine-particle systems
Lattices
Magnetic field measurement
Magnetic fields
Magnetic properties and materials
Magnetization
Monte Carlo methods
Nearest neighbor searches
Physics
Small particles and nanoscale materials
Studies of specific magnetic materials
Temperature measurement
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Description
Summary:The magnetic behavior of antiferromagnetic particles, with sc and bcc lattice structures, has been studied using the Monte Carlo simulation technique. The magnetization of the particles is a surface effect. At very low temperatures the surface exchange field gives a high coercivity. At high temperatures, the coercivity scales with the proportion of the uncompensated spins in the particle.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.706398