Surface effects in barium hexaferrite nanoparticles

Authors
del Muro, MG Batlle, X Labarta, A
Citation
Mg. Del Muro et al., Surface effects in barium hexaferrite nanoparticles, J MAGN MAGN, 197, 1999, pp. 138-139
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
197
Year of publication
1999
Pages
138 - 139
Database
ISI
SICI code
0304-8853(199905)197:<138:SEIBHN>2.0.ZU;2-P
Abstract
Two BaFe10.4C0.8Ti0.8O19 samples of 45 and 7.6 nm mean particle diameter we re studied. Static magnetic properties and low-field relaxation measurement s indicate the presence of high-energy barriers in the nanometric powder, w hich cannot be associated with the intrinsic anisotropy. However, relaxatio n after cooling at high held involves only low-energy barriers. (C) 1999 El sevier Science B.V. All rights reserved.