Title :
Determination of anisotropy fields in magnetic particle systems. Application to bariumhexaferrite powders
Author :
Pfeiffer, H. ; Schuppel, W.
Author_Institution :
Inst. fur Phys. Hochtechnol., Jena, Germany
fDate :
3/1/1994 12:00:00 AM
Abstract :
A theory is set up to calculate anisotropy fields in assemblies of fine magnetic particles from remanence curves. The formalism takes into account the effects of thermal fluctuations. With the help of this approach anisotropy fields of microcrystalline and nanocrystalline bariumhexaferrite particles are determined
Keywords :
barium compounds; ferrites; magnetic anisotropy; magnetic properties of fine particles; powders; remanence; BaFe12-2xCoxTixO19; BaFe12CoTiO19; anisotropy fields; bariumhexaferrite powders; fine magnetic particles; nanocrystalline; remanence curves; thermal fluctuations; Anisotropic magnetoresistance; Fluctuations; Magnetic anisotropy; Magnetic field measurement; Magnetic particles; Magnetic switching; Magnetization; Perpendicular magnetic anisotropy; Remanence; Switches;
Journal_Title :
Magnetics, IEEE Transactions on
