THE OBSERVATION OF MULTIAXIAL ANISOTROPY IN ULTRAFINE COBALT FERRITE PARTICLES USED IN MAGNETIC FLUIDS

Authors
DAVIES KJ WELLS S UPADHYAY RV CHARLES SW OGRADY K ELHILO M MEAZ T MORUP S
Citation
Kj. Davies et al., THE OBSERVATION OF MULTIAXIAL ANISOTROPY IN ULTRAFINE COBALT FERRITE PARTICLES USED IN MAGNETIC FLUIDS, Journal of magnetism and magnetic materials, 149(1-2), 1995, pp. 14-18
Citations number
22
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
149
Issue
1-2
Year of publication
1995
Pages
14 - 18
Database
ISI
SICI code
0304-8853(1995)149:1-2<14:TOOMAI>2.0.ZU;2-4
Abstract
It has been shown that nano-sized particles of cobalt ferrite produced by the coprecipitation method for use in magnetic fluids exhibit mult iaxial anisotropy, which has not previously been reported for ferrite particles. The value of the magnetic anisotropy constant calculated fr om measurements of the decay of remanence is similar to that reported for bulk cobalt ferrite.