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

Volume

25

Issue

5

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

3405

Lastpage

3407

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; BaCo_xTi_yFe_12-x-yO_z; BaZn_xTi_yFe_12-x-yO_z; 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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.42316

Filename

42316