Title :
Directional dependence and minor loops of magnetization of Ba- and Sr-ferrites
Author :
Hauser, H. ; Groessinger, R.
Author_Institution :
Vienna Univ. of Technol., Austria
Abstract :
The nonlinear dependence of magnetization on history and direction of the applied magnetic field in Ba- and Sr-ferrites is described by statistical domain behavior using phenomenological parameters. These parameters are related to spontaneous magnetization, magnetocrystalline anisotropy, magnetostriction, and microstructure geometry, using dimensionless microscopic constants.
Keywords :
barium compounds; ferrites; magnetic anisotropy; magnetic domains; magnetic hysteresis; magnetostriction; micromagnetics; permanent magnets; spontaneous magnetisation; strontium compounds; Ba ferrites; BaFe12O19; Sr ferrites; SrFe12O19; dimensionless microscopic constants; directional dependence; ferrite permanent magnets; magnetocrystalline anisotropy; magnetostriction; microstructure geometry; minor loops of magnetization; nonlinear dependence; phenomenological parameters; spontaneous magnetization; statistical domain behavior; Anisotropic magnetoresistance; Geometry; History; Magnetic anisotropy; Magnetic domains; Magnetic fields; Magnetization; Magnetostriction; Microstructure; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.815737
