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Magnetic properties of ?-Fe2O3–SiO2 aerogel and xerogel nanocomposite materials

Cannas, C., Casula, M.F., Concas, G., Corrias, A., Gatteschi, D., Falqui, A., Musinu, A., Sangregorio, C., Spano, G. (2001) Magnetic properties of ?-Fe2O3–SiO2 aerogel and xerogel nanocomposite materials. Journal of Materials Chemistry, 11 (12). pp. 3180-3187. ISSN 0959-9428. (doi:10.1039/b104562h) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1039/b104562h

Abstract

The properties of aerogel and xerogel iron oxide-silica nanocomposites prepared by the sol-gel method were investigated by thermal analysis, X-ray diffraction, transmission electron microscopy, Mössbauer spectroscopy and susceptibility measurements. Pure maghemite nanoparticles were obtained starting from both xerogel and aerogel samples, with particles of average size around 5 nm which tend to aggregate into the silica matrix. The role of magnetic interparticle interactions, which have a strong influence on the magnetic properties, is discussed.

Item Type: Article
DOI/Identification number: 10.1039/b104562h
Uncontrolled keywords: iron oxide, silicon dioxide, article, magnetism, Mössbauer spectroscopy, nanoparticle, thermal analysis, transmission electron microscopy, X ray diffraction
Subjects: Q Science > QC Physics > QC176.8.N35 Nanoscience, nanotechnology
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Anna Corrias
Date Deposited: 17 Dec 2014 12:37 UTC
Last Modified: 29 May 2019 13:57 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/46225 (The current URI for this page, for reference purposes)
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