Ionic disorder and Neel temperature in ZnFe2O4 nanoparticles

Authors
Goya, GF Rechenberg, HR
Citation
Gf. Goya et Hr. Rechenberg, Ionic disorder and Neel temperature in ZnFe2O4 nanoparticles, J MAGN MAGN, 197, 1999, pp. 191-192
Citations number
5
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
191 - 192
Database
ISI
SICI code
0304-8853(199905)197:<191:IDANTI>2.0.ZU;2-2
Abstract
Magnetic properties of ultrafine ZnFe2O4 particles obtained from mechanosyn thesis of the precursor oxides are presented. The ordering temperature of a s-milled sample is T-N approximate to 115(10) K, and extends over a Delta T approximate to 60 K range. This behavior can be explained by oxygen vacanc ies and local disorder at Fe sites resulting from the milling process. Magn etic coupling between ordered and disordered phases is discussed. (C) 1999 Elsevier Science B.V. All rights reserved.