TIME-DOMAIN STUDY OF BROWNIAN AND NEEL RELAXATION IN FERROFLUIDS

Authors
KOTITZ R FANNIN PC TRAHMS L
Citation
R. Kotitz et al., TIME-DOMAIN STUDY OF BROWNIAN AND NEEL RELAXATION IN FERROFLUIDS, Journal of magnetism and magnetic materials, 149(1-2), 1995, pp. 42-46
Citations number
11
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
42 - 46
Database
ISI
SICI code
0304-8853(1995)149:1-2<42:TSOBAN>2.0.ZU;2-3
Abstract
Relaxation of six ferrofluids differing in particle size was studied u sing a de SQUID magnetometer. We observed Noel relaxation with nonline ar In(t) behaviour in freeze-dried samples and viscosity-dependent Bro wnian relaxation in glycerol-based dried samples. Investigations of th e basic magnetic parameters, complex susceptibility and remanence comp lement the time-dependent measurements.