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

Volume

26

Issue

1

fYear

1990

fDate

1/1/1990 12:00:00 AM

Firstpage

228

Lastpage

230

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.50542

Filename

50542