Monodispersed nanocrystalline Co1-xZnxFe2O4 particles by forced hydrolysis: synthesis and characterization

Author(s)
Giap V. Duong, N Hanh, D. V. Linh, Roland Grössinger, Peter Weinberger, Erhard Schafler, Michael Zehetbauer
Abstract

Zinc-substituted cobalt ferrites, Co1-xZnxFe2O4, were for the first time successfully prepared by forced hydrolysis method. The obtained materials are single phase, monodispersed nanocrystalline with an average grain size of about 3 nm. These materials are superparamagnetic at room temperature and ferrimagnetic at temperature lower than the blocking temperature. When the zinc substitution increases from x=0 to 0.4, at 4.2 K, the saturation magnetization increases from 72.1 to 99.7 emu/g. The high saturation magnetization of these samples suggests that this method is suitable for preparing high-quality nanocrystalline magnetic ferrites for practical applications. © 2006 Elsevier B.V. All rights reserved.

Organisation(s)
Physics of Nanostructured Materials
External organisation(s)
Hanoi University of Science and Technology, Technische Universität Wien
Journal
Journal of Magnetism and Magnetic Materials
Volume
311
Pages
46-50
No. of pages
5
ISSN
0304-8853
DOI
https://doi.org/10.1016/j.jmmm.2006.11.167
Publication date
2007
Peer reviewed
Yes
Austrian Fields of Science 2012
1030 Physics, Astronomy
Portal url
https://ucris.univie.ac.at/portal/en/publications/monodispersed-nanocrystalline-co1xznxfe2o4-particles-by-forced-hydrolysis-synthesis-and-characterization(9e6fb012-5ba4-4ed7-a357-e2967d0073da).html