Title :
Interaction effects in the remanence curves of CoTi-doped BaFe systems
Author :
Mayo, P.I. ; Bradbury, A. ; Chantrell, R.W. ; Kelly, P.E. ; Jones, H.E. ; Bissell, P.R.
Author_Institution :
Sch. of Electr. Eng. Sci., Univ. Coll. of North Wales, Bangor, UK
fDate :
1/1/1990 12:00:00 AM
Abstract :
Measurements are reported on doped barium ferrite particles produced through chemical coprecipitation. The data are analyzed using a parameter ΔM(H). The behavior of ΔM (H) is reported to be strongly dependent on the doping and consequently the coercivity of the media. High-coercive-force media exhibit a net magnetizing effect in ΔM(H), which changes to a net demagnetizing effect as the coercivity decreases. This is interpreted in terms of changes in the particle interactions introduced through doping
Keywords :
barium compounds; cobalt; coercive force; ferrites; magnetic properties of fine particles; remanence; titanium; BaFe12O19:Co,Ti; chemical coprecipitation; coercivity; doping; ferrite particles; high coercive force media; net demagnetizing effect; net magnetizing effect; particle interactions; remanence curves; Barium; Coercive force; Demagnetization; Doping; Ferrites; Magnetic analysis; Magnetic field measurement; Powders; Remanence; Saturation magnetization;
Journal_Title :
Magnetics, IEEE Transactions on
