Title :
Anhysteretic magnetization and demagnetization factor in Preisach models
Author :
Boots, Henk M.J. ; Schep, Kees M.
Author_Institution :
Philips Res. Lab., Eindhoven, Netherlands
fDate :
11/1/2000 12:00:00 AM
Abstract :
The anhysteretic magnetization Man depends on the internal field after degaussing Han and, possibly, on the demagnetization factor N. Neel´s theory of the N dependence is criticized. Classes of Preisach models are identified for which Man (Han) does not depend on N. A numerical method is presented to determine Man (Han, N) from a Preisach model. The zero-field anhysteretic permeability is expressed in terms of the Preisach distribution up to first order in N-k, where k is the parameter of the moving Preisach model
Keywords :
demagnetisation; magnetic hysteresis; magnetic permeability; magnetisation; numerical analysis; Neel theory; Preisach distribution; Preisach models; anhysteretic magnetization; degauss curve; degaussing; demagnetization factor; hysteresis loops; internal field; moving Preisach model; numerical method; zero-field anhysteretic permeability; Demagnetization; Ellipsoids; History; Magnetic fields; Magnetic hysteresis; Magnetic materials; Magnetization; Permeability; Signal processing;
Journal_Title :
Magnetics, IEEE Transactions on
