Title :
Application of the torsion pendulum method to barium ferrite media
Author :
Richter, H.J. ; Hempel, K.A. ; Schulz, R. ; Maurer, R. ; Hibst, H.
Author_Institution :
Inst. fuer Werkstoffe der Elektrotech., Aachen Univ. of Technol., Templegraben, West Germany
fDate :
9/1/1989 12:00:00 AM
Abstract :
Measurements on particulate barium ferrite samples, three with ZnTi doping and one with CoTi doping, are reported. The measurements were made using the torsion pendulum method. A decrease of the magnetocrystalline anisotropy field with increasing dopant concentration is found. The effect of grain size is also investigated. The method can be used to distinguish between single-domain and multidomain behavior of the particles
Keywords :
barium compounds; cobalt compounds; ferrites; magnetic anisotropy; magnetic domains; magnetic recording; zinc compounds; BaCoxTiyFe12-x-yOz; BaZnxTiyFe12-x-yOz; anisotropy strength; dopant concentration; ferrite samples; grain size effect; magnetic recording media; magnetocrystalline anisotropy field; multidomain behavior; single domain behaviour; torsion pendulum method; Anisotropic magnetoresistance; Barium; Doping; Ferrites; Frequency measurement; Magnetic anisotropy; Magnetic field measurement; Magnetic flux; Particle measurements; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
