Title :
Perpendicular orientation of magnetic powder
Author :
Sumiya, K. ; Higashi, H. ; Kitahata, S. ; Nakamae, K. ; Matsumoto, T.
Author_Institution :
Technical Research Lab. Oyamazaki, Kyoto, Japan
fDate :
1/1/1984 12:00:00 AM
Abstract :
Behavior of perpendicular orientation of the acicular ( ratio 7/1 ) and ultra fine (

m) particles in the thin coating type media was investigated by magnetic measurements. The perpendicular anisotropy coatings which contain the acicular γ-Fe
2O
3particles or Co-γ-Fe
2O
3particles can be obtained by a continuous process line. The degree of perpendicular orientation of the moments or the particles in the tapes are discussed by the measurements of Mössbauer spectra.
Keywords :
Magnetic recording/recording materials; Powdered magnetic materials/devices; Coatings; Magnetic anisotropy; Magnetic field measurement; Magnetic films; Magnetic recording; Magnetic variables measurement; Magnets; Particle measurements; Perpendicular magnetic recording; Powders;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1984.1063026