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Synthesis and magnetic properties of Co.sub.1-x./sub.Zn.sub.x./sub.Fe.sub.2./sub.O.sub.4+γ./sub. nanoparticles as materials for magnetic fluid hyperthermia
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SYSNO ASEP 0352734 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Synthesis and magnetic properties of Co1-xZnxFe2O4+γ nanoparticles as materials for magnetic fluid hyperthermia Author(s) Veverka, Miroslav (FZU-D) RID
Veverka, Pavel (FZU-D) RID, ORCID
Jirák, Zdeněk (FZU-D) RID, ORCID, SAI
Kaman, Ondřej (FZU-D) RID, ORCID
Knížek, Karel (FZU-D) RID, ORCID
Maryško, Miroslav (FZU-D) RID
Pollert, Emil (FZU-D)
Závěta, Karel (FZU-D) RID, ORCIDSource Title Journal of Magnetism and Magnetic Materials. - : Elsevier - ISSN 0304-8853
Roč. 322, č. 16 (2010), s. 2386-2389Number of pages 4 s. Language eng - English Country NL - Netherlands Keywords magnetic nanoparticle ; cobalt zinc ferrite ; precipitation ; magnetic behavior ; magnetic fluid hyperthermia Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects KAN200200651 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) KJB100100701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) MEB090901 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100521 - FZU-D (2005-2011) UT WOS 000277316100016 DOI 10.1016/j.jmmm.2010.02.042 Annotation Nanoparticles of the single spinel phase Co1-xZnxFe2O4+γ of mean size 3 nm – 23 nm, as determined by X–ray diffraction analysis, were synthesized by the co-precipitation method followed by a temperature treatment. Magnetic studies carried out in the range of 4.5 – 550 K revealed gradual transition from ferrimagnetic to superparamagnetic to paramagnetic behaviour depending on the composition and particle size. The observed behaviour indicates a broad distribution of volume sizes of the nanoparticles. Particular importance can be ascribed to the composition of x = 0.6 where the observed transition temperature to the paramagnetic state at 310 – 334 K suggests applicability of this material for magnetic fluid hyperthermia in a self controlled regime. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2011
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