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Magnetic properties of nanostructured SiOo2:Eu3+ powders
dc.creator | Spasojević, Vojislav | |
dc.creator | Dramićanin, Miroslav | |
dc.creator | Jokanović, Vukoman | |
dc.creator | Andrić, Željka | |
dc.creator | Blanuša, Jovan | |
dc.creator | Kusigerski, Vladan | |
dc.creator | Mitrić, Miodrag | |
dc.creator | Tadić, Marin | |
dc.creator | Kapičić, Ana | |
dc.date.accessioned | 2017-06-10T15:45:07Z | |
dc.date.issued | 2006 | |
dc.identifier.issn | 0352-5139 | |
dc.identifier.issn | 1820-7421 | |
dc.identifier.uri | https://dais.sanu.ac.rs/123456789/280 | |
dc.description.abstract | Eu-doped silica nanoparticles with different concentrations of europium (3% 6%and 15at.%) 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 behavior typical for Eu3+ ions, with a plateau below 60K, 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 40K, a contribution of paramagnetic impurities obeying the Curie law was observed. Heat treatment of the powders at 823K and 1073K increased the magnetic susceptibility. The appearance of a small peak at 70K indicated the presence of small quantities of ferromagnetic EuO in the powders after heating. | en |
dc.format | application/pdf | |
dc.language | en | |
dc.publisher | Belgrade : Serbian Chemical Society | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Journal of the Serbian Chemical Society | en |
dc.subject | magnetic properties | |
dc.subject | nanoparticles | |
dc.subject | rare earths | |
dc.subject | silica | |
dc.subject | light scattering | |
dc.title | Magnetic properties of nanostructured SiOo2:Eu3+ powders | en |
dc.type | article | |
dc.rights.license | BY-NC-ND | |
dcterms.abstract | Блануша, Јован; Кусигерски, Владан; Митрић, Миодраг; Тадић, Марин; Капичић, Aна; Aндрић, Жељка; Јокановић, Вукоман; Драмићанин, Мирослав; Спасојевић, Војисла; | |
dc.citation.spage | 412 | |
dc.citation.epage | 420 | |
dc.citation.volume | 71 | |
dc.citation.issue | 4 | |
dc.identifier.wos | 000238365500010 | |
dc.identifier.doi | 10.2298/JSC0604413S | |
dc.identifier.scopus | 2-s2.0-33746447140 | |
dc.type.version | publishedVersion | |
dc.identifier.fulltext | https://dais.sanu.ac.rs/bitstream/id/20445/277.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_dais_280 |