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https://open.uns.ac.rs/handle/123456789/10519
Nаziv: | Magnetic properties of ZnFe2O4 and In-doped ZnFe2O4 nanoparticles | Аutоri: | Milanović, Marija Moshopoulou, Evagelia Srdić, Vladimir |
Dаtum izdаvаnjа: | 1-авг-2008 | Izdаvаč: | Wiley Online Library | Čаsоpis: | Physica Status Solidi (A) Applications and Materials Science | Sažetak: | The magnetic behaviour of ZnFe 2O 4 and Zn 0.85In 0.15Fe 2O 4 nanoparticles with diameters of about 4.1 and 3 nm respectively was investigated by dc magnetisation measurements. Both materials are at superparamagnetic state above a blocking temperature of about 25 K and exhibit the collective behaviour of an assembly of single domain ferromagnets below this temperature. In-doping results in a decrease of the magnetisation and increase of coercitivity of the nanoparticles. This observation implies that, besides size, doping causes also significant structural rearrangements which in turn induce changes in the strength and the number of Fe 3+(A)-O-Fe 3+(B) superexchange interactions. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA. | URI: | https://open.uns.ac.rs/handle/123456789/10519 | ISSN: | 18626300 | DOI: | 10.1002/pssa.200723633 |
Nаlаzi sе u kоlеkciјаmа: | TF Publikacije/Publications |
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