MAGNETIZATION REVERSAL MECHANISMS IN COLLOIDAL DISPERSIONS OF MAGNETITE PARTICLES

Authors
GONZALEZ JM MONTERO MI LOPEZPEREZ JA MIRA J LOPEZQUINTELA MA RIVAS J BATLLE X LABARTA A
Citation
Jm. Gonzalez et al., MAGNETIZATION REVERSAL MECHANISMS IN COLLOIDAL DISPERSIONS OF MAGNETITE PARTICLES, IEEE transactions on magnetics, 34(4), 1998, pp. 2114-2116
Citations number
10
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
34
Issue
4
Year of publication
1998
Part
1
Pages
2114 - 2116
Database
ISI
SICI code
0018-9464(1998)34:4<2114:MRMICD>2.0.ZU;2-S
Abstract
We have studied the structural and magnetic properties of colloids con sisting of different concentrations of magnetite particles dispersed i n kerosene. Our data for the temperature dependence of the low field m agnetization and the saturation coercive force of the samples evidence d the occurrence, in different temperature ranges, of Neel- and Brown- type relaxation processes whose characteristics were largely influence d by strong dipolar interparticle interactions.