MAGNETIC-PROPERTIES OF GAMMA-FE2O3 SMALL PARTICLES PREPARED BY SPRAY-PYROLYSIS

Authors
LOPEZ A LAZARO FJ GONZALEZCARRENO T MORALES MP SERNA CJ
Citation
A. Lopez et al., MAGNETIC-PROPERTIES OF GAMMA-FE2O3 SMALL PARTICLES PREPARED BY SPRAY-PYROLYSIS, Journal of magnetism and magnetic materials, 144, 1995, pp. 383-384
Citations number
6
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
144
Year of publication
1995
Part
1
Pages
383 - 384
Database
ISI
SICI code
0304-8853(1995)144:<383:MOGSPP>2.0.ZU;2-4
Abstract
Small particles of gamma-Fe2O3 synthesized by spray pyrolysis have bee n studied by ac susceptibility. They are made out of nanometric crysta llites resulting in dense and hollow spherical aggregates. The results show the transition from the superparamagnetic to blocked state. The anisotropy and magnetic moment per aggregate are less than for single particles of the same dimensions.