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Structural and Magnetic Properties of CoFe2-x Gd (x) O-4 (0.0 a parts per thousand currency sign x a parts per thousand yen 0.1) Spinel Ferrite Nanoparticles Synthesized by Starch-Assisted Sol-Gel Auto-combustion Method

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dc.title Structural and Magnetic Properties of CoFe2-x Gd (x) O-4 (0.0 a parts per thousand currency sign x a parts per thousand yen 0.1) Spinel Ferrite Nanoparticles Synthesized by Starch-Assisted Sol-Gel Auto-combustion Method en
dc.contributor.author Yadav, Raghvendra Singh
dc.contributor.author Havlica, Jaromír
dc.contributor.author Kuřitka, Ivo
dc.contributor.author Kožáková, Zuzana
dc.contributor.author Bartoníčková, Eva
dc.contributor.author Másilko, Jiří
dc.contributor.author Kalina, Lukáš
dc.contributor.author Wasserbauer, Jaromír
dc.contributor.author Hajdúchová, Miroslava
dc.contributor.author Enev, Vojtěch
dc.relation.ispartof Journal of Superconductivity and Novel Magnetism
dc.identifier.issn 1557-1939 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2015
utb.relation.volume 28
utb.relation.issue 6
dc.citation.spage 1797
dc.citation.epage 1806
dc.type article
dc.language.iso en
dc.publisher Springer
dc.identifier.doi 10.1007/s10948-015-2951-7
dc.relation.uri https://link.springer.com/article/10.1007/s10948-015-2951-7
dc.subject Ceramic nanoparticles en
dc.subject Magnetic properties en
dc.subject Spinel ferrites en
dc.description.abstract In this present article, CoFe2-x Gd (x) O-4 (0.0 a parts per thousand currency sign x a parts per thousand yen 0.1) nanoparticles were synthesized by starch-assisted sol-gel auto-combustion method. Powder X-ray diffraction patterns revealed the formation of cubic spinel ferrite with the signature of GdFeO3 phase at higher Gd3+ concentration. The field emission scanning electron microscopy study demonstrated the spherical nanoparticle in the size range 4-10 nm. Raman and Fourier transform infrared spectra supported the formation of the spinel ferrite structure in the nanocrystalline form. The X-ray photoelectron spectroscopy (XPS) analysis confirmed the presence of Co2+ and Fe3+ at the octahedral site as well as the tetrahedral site in CoFe2-x Gd (x) O-4 (x = 0.05) nanoparticles. The distribution of Fe3+ ions was obtained to be about 73 % in the octahedral sites and about 27 % in the tetrahedral sites. The distribution of Co2+ ions at the octahedral and tetrahedral sites were 78 and 22 %, respectively. The increase in saturation magnetization and coercivity from 14.59 emu/g (x = 0.00) to 16.11 emu/g (x = 0.025) and 51.75 Oe (x = 0.00) to 92.86 Oe (x = 0.050), respectively, in CoFe2-x Gd (x) O-4 nanoparticles were observed. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1004601
utb.identifier.rivid RIV/70883521:28610/15:43873032!RIV16-MSM-28610___
utb.identifier.obdid 43873452
utb.identifier.scopus 2-s2.0-84939981558
utb.identifier.wok 000353828900022
utb.source j-wok
dc.date.accessioned 2015-06-02T08:13:05Z
dc.date.available 2015-06-02T08:13:05Z
dc.description.sponsorship Project Excellent Teams at the Materials Research Centre, Brno University of Technology [CZ.1.07/2.3.00/30.0005]; project Centre of Polymer Systems at Tomas Bata University in Zlin, Czech Republic [CZ.1.05/2.1.00/03.0111]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Kuřitka, Ivo
utb.contributor.internalauthor Kožáková, Zuzana
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