Title :
Inclusive model of ferromagnetic hysteresis
Author :
Phelps, Brian F. ; Liorzou, Francoise ; Atherton, David L.
Author_Institution :
Dept. of Phys., Queen´´s Univ., Kingston, Ont., Canada
fDate :
3/1/2002 12:00:00 AM
Abstract :
We present an inclusive macroscopic model of ferromagnetic hysteresis. We developed the model from a Stoner-Wohlfarth approach by adding the mean-field or nearest-neighbor interactions and the effect of pinning. The model includes features of the Jiles-Atherton model in the previous Atherton-Beattie extension of the Stoner-Wohlfarth model, but still omits the domain wall energy effects included in the Globus model. The model describes both reversible and irreversible processes and hysteresis caused by combinations of interaction, anisotropy, and pinning. We outline computational approaches and give examples
Keywords :
ferromagnetism; magnetic anisotropy; magnetic hysteresis; magnetic moments; Atherton-Beattie extension; Globus model; Jiles-Atherton model features; Stoner-Wohlfarth approach; Stoner-Wohlfarth model; dipole-dipole interaction; domain wall energy effects; ferromagnetic anisotropy; ferromagnetic hysteresis; ferromagnetic interaction; ferromagnetic pinning; hysteresis; inclusive macroscopic model; inclusive model; irreversible processes; mean-field interactions; nearest-neighbor interactions; pinning; reversible processes; Anisotropic magnetoresistance; Equations; Ferrites; Magnetic anisotropy; Magnetic domains; Magnetic hysteresis; Magnetic materials; Magnetostriction; Perpendicular magnetic anisotropy; Saturation magnetization;
Journal_Title :
Magnetics, IEEE Transactions on