MAGNETIC-RELAXATION AND SUPERPARAMAGNETISM IN NANOCRYSTALLINE FERRITES

Authors
BATLLE X DELMURO MG LABARTA A GORNERT P
Citation
X. Batlle et al., MAGNETIC-RELAXATION AND SUPERPARAMAGNETISM IN NANOCRYSTALLINE FERRITES, Journal of magnetism and magnetic materials, 158, 1996, pp. 191-192
Citations number
7
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
158
Year of publication
1996
Pages
191 - 192
Database
ISI
SICI code
0304-8853(1996)158:<191:MASINF>2.0.ZU;2-7
Abstract
The validity of the T ln(t/tau(0)) scaling procedure has been tested b y independent determination of the energy barrier distribution f(E) fr om high temperature magnetization curves, and tau(0) by analysing the in-phase component of the ac susceptibility. The effect of interpartic le interactions on f(E) is discussed. It is shown that the derivative of the master curve M versus T ln(t/tau(0)) leads to the energy barrie r distribution.