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

Autor(en)

Giap V. Duong, N Hanh, D. V. Linh, Roland Grössinger, Peter Weinberger, Erhard Schafler, Michael Zehetbauer

Abstrakt

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(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Hanoi University of Science and Technology (HUST), Technische Universität Wien

Journal

Journal of Magnetism and Magnetic Materials

Band

311

Seiten

46-50

Anzahl der Seiten

5

ISSN

0304-8853

DOI

https://doi.org/10.1016/j.jmmm.2006.11.167

Publikationsdatum

2007

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/9e6fb012-5ba4-4ed7-a357-e2967d0073da