Magnetic aging in magnetic fluids: a static magnetic birefringence investigation

Authors
Neto, KS Bakuzis, AF Pereira, AR Morais, PC
Citation
Ks. Neto et al., Magnetic aging in magnetic fluids: a static magnetic birefringence investigation, J MAGN MAGN, 226, 2001, pp. 1893-1895
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
226
Year of publication
2001
Part
2
Pages
1893 - 1895
Database
ISI
SICI code
0304-8853(200105)226:<1893:MAIMFA>2.0.ZU;2-N
Abstract
The effect of magnetic aging on the static magnetic birefringence (SMB) dat a of a nickel ferrite-based ionic magnetic fluid was investigated. The trad itional SMB model was improved to account for both the formation of agglome rates and the field dependence of the relative permeability associated to m onomers and chain-like structures. Improvement of the SMB model allows dete rmination of the sample polydispersity profile in excellent agreement with the transmission electron microscopy data. (C) 2001 Elsevier Science B.V. A ll rights reserved.