Title :
New two-dimensional model for inhomogeneous permanent magnets
Author :
Ktena, A. ; Fotiadis, D.I. ; Massalas, C.V.
Author_Institution :
Dept. of Comput. Sci., Ioannina Univ., Greece
fDate :
11/1/2000 12:00:00 AM
Abstract :
Existing solutions of the nucleation fields in inhomogeneous ferromagnets, based on the minimization of the energy equation of a soft magnetic inclusion implanted in a hard magnetic matrix, are reviewed and compared. A macroscopic two-dimensional (2-D) model based on the Preisach formalism is proposed. The properties of the model and the effect of the identification parameters on the major loop characteristics are investigated. The simulated results include major and minor loops and the rotational hysteresis loss calculation
Keywords :
ferromagnetic materials; magnetic hysteresis; magnetic leakage; nucleation; permanent magnets; rare earth alloys; transition metal alloys; Preisach formalism; energy equation minimization; hard magnetic matrix; identification parameters; inhomogeneous ferromagnets; inhomogeneous permanent magnets; macroscopic 2D model; major loop characteristics; minor loops; nucleation fields; rare earth transition metal alloys; rotational hysteresis loss calculation; soft magnetic inclusion; two-dimensional model; Anisotropic magnetoresistance; Coercive force; Equations; Magnetic anisotropy; Magnetic hysteresis; Magnetic materials; Permanent magnets; Perpendicular magnetic anisotropy; Saturation magnetization; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
