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dc.creatorSpasojević, Vojislav
dc.creatorDramićanin, Miroslav
dc.creatorJokanović, Vukoman R.
dc.creatorAndrić, Z
dc.creatorBlanuša, Jovan
dc.creatorKusigerski, Vladan
dc.creatorMitrić, Miodrag
dc.creatorTadić, Marin
dc.creatorKapidžić, Ana
dc.date.accessioned2018-03-01T19:49:58Z
dc.date.available2018-03-01T19:49:58Z
dc.date.issued2006
dc.identifier.issn0352-5139
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/3028
dc.description.abstractEu-doped silica nanoparticles with different concentrations of europium (3 %, 6 % and 15 at. %) were prepared by a hydrothermal procedure. Light scattering measurements of the silica colloids as well as TEM microscopy, revealed a narrow size distribution of the particles, ranging from 5 to 10 nm. X-Ray diffraction showed that all the powders were amorphous. Magnetic susceptibility vs. temperature measurements showed a behaviour typical for Eu3+ ions, with a plateau below 60 K, and an increase of the mass susceptibility with Eu concentration. The splitting of zero-field cooled (ZFC) and field-coled (FC) susceptibility branches increased with the europium concentration, indicating the presence of interparticle interactions. At temperatures below 40 K, a contribution of paramagnetic impurities obeying the Curic law was observed. Heat treatment of the powders at 823 K and 1073 K increased the magnetic susceptibility. The appearance of a small peak at 70 K indicated the presence of small quantities of ferromagnetic EuO in the powders after heating.en
dc.rightsopenAccessen
dc.sourceJournal of the Serbian Chemical Societyen
dc.subjectmagnetic propertiesen
dc.subjectnanoparticlesen
dc.subjectrare earthen
dc.subjectsilicaen
dc.subjectlight scatteringen
dc.titleMagnetic properties of nanostructured SiO2: Eu3+ powdersen
dc.typearticleen
dcterms.abstractAндриц, З; Капициц, A; Спасојевић Војислав; Драмићанин Мирослав; Јокановић Вукоман Р.; Блануша Јован; Кусигерски Владан; Митрић Миодраг; Тадић Марин;
dc.citation.volume71
dc.citation.issue4
dc.citation.spage413
dc.citation.epage420
dc.identifier.wos000238365500010
dc.identifier.doi10.2298/JSC0604413S
dc.citation.rankM23
dc.identifier.scopus2-s2.0-33746447140
dc.identifier.fulltexthttp://vinar.vin.bg.ac.rs//bitstream/id/12365/3024.pdf


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