Mechanosynthesis of Fe-doped SnO2 nanoparticles

Fe-doped nanosized SnO2 powders were prepared by mechanosynthesis using rutile SnO2 and hematite Fe2O3 as starting materials. The estimated grain size of the obtained rutile structure was between 10 and 20nm. Mossbauer spectroscopy shows the presence of two interactions corresponding to 3+ and 2+ ir...

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Veröffentlicht in:	Physica. B, Condensed matter Condensed matter, 2007-09, Vol.398 (2), p.215-218
Hauptverfasser:	CABRERA, A. F, MUDARRA NAVARRO, A. M, RODRIGUEZ TORRES, C. E, SANCHEZ, F. H
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Diamagnetism, paramagnetism and superparamagnetism Exact sciences and technology Magnetic properties and materials Magnetic properties of nanostructures Magnetic resonances and relaxations in condensed matter, mössbauer effect Mössbauer effect other γ-ray spectroscopy Physics
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Beschreibung
Zusammenfassung:	Fe-doped nanosized SnO2 powders were prepared by mechanosynthesis using rutile SnO2 and hematite Fe2O3 as starting materials. The estimated grain size of the obtained rutile structure was between 10 and 20nm. Mossbauer spectroscopy shows the presence of two interactions corresponding to 3+ and 2+ iron oxidation states with similar relative fractions. The magnetic measurements exhibit ferromagnetic- (FML) and superparamagnetic-like (SML) behavior. Evidence of a system of strongly interacting particles was found.
ISSN:	0921-4526 1873-2135
DOI:	10.1016/j.physb.2007.04.019