Structural and magnetic properties of iron species/SiO2 nanocomposites obtained by sol-gel methods

The phase composition, local structure and magnetic interactions were investigated in FexOx –SiO2 nanocomposites obtained by modern sol‐gel methods. The very sensitive method of Mössbauer spectroscopy has evidenced the strong influence of the silica matrix precursor on the iron phase composition in...

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Veröffentlicht in:	Physica status solidi. C 2004-12, Vol.1 (12), p.3507-3510
Hauptverfasser:	Predoi, D., Kuncser, V., Zaharescu, M., Keune, W., Sahoo, B., Valeanu, M., Crisan, M., Raileanu, M., Jitianu, A., Filoti, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	64.70.Nd 75.75.+a 76.80.+y 76.80.+y 81.07.Bc 81.20.Fw
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The phase composition, local structure and magnetic interactions were investigated in FexOx –SiO2 nanocomposites obtained by modern sol‐gel methods. The very sensitive method of Mössbauer spectroscopy has evidenced the strong influence of the silica matrix precursor on the iron phase composition in the initial composites as well as on the size distribution of the hematite nanoparticles obtained by suitable thermal annealing treatments. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:	1610-1634 1610-1642
DOI:	10.1002/pssc.200405492