Mössbauer studies on ultraporous Fe-Oxide/SiO2 aerogel

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dc.contributor.authorLančok, Adriana
dc.contributor.authorZávěta, Karel
dc.contributor.authorPopovici, M.
dc.contributor.authorSavii, C.
dc.contributor.authorGich, M.
dc.contributor.authorRoig, A.
dc.contributor.authorMolins, E.
dc.contributor.authorBarčová, Karla
dc.date.accessioned2007-03-20T15:07:20Z
dc.date.available2007-03-20T15:07:20Z
dc.date.issued2005
dc.description.abstract-enMagnetic aerogels with very low volume density of ∼0.2 g/cm3 were prepared by sol-gel method and supercritical drying. The resulting materials were monolithic and displayed high surface area. By X-ray diffraction and Mössbauer spectroscopy the crystalline phase formed inside the mesopores of the SiO2 matrix was identified as a spinel iron oxide. Comparison of the magnetic measurements with Mössbauer spectra at various temperatures contributed to the elucidation of the magnetic state of this nanocomposite system with restricted magnetic interactions, in particular its transition to a superparamagnetic state.en
dc.identifier.citationHyperfine Interactions. 2005, vol. 165, no. 1-4, p. 203-208.en
dc.identifier.doi10.1007/s10751-006-9266-9
dc.identifier.issn0304-3843
dc.identifier.issn1572-9540
dc.identifier.locationNení ve fondu ÚKen
dc.identifier.urihttp://hdl.handle.net/10084/59876
dc.identifier.wos000243551500030
dc.language.isoenen
dc.publisherSpringeren
dc.relation.ispartofseriesHyperfine Interactionsen
dc.relation.urihttps://dx.oi.org/10.1007/s10751-006-9266-9en
dc.subjectaerogelsen
dc.subjectFe2O3en
dc.subjectnanoparticlesen
dc.subjectsuperparamagnetic stateen
dc.subjectMössbauer spectroscopyen
dc.titleMössbauer studies on ultraporous Fe-Oxide/SiO2 aerogelen
dc.typearticleen

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