Authors
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Zorica Ž. Lazarević
Institute of Physics, University of Belgrade, Pregrevica 118, Zemun, Belgrade, Serbia.
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Aleksandra Milutinović
Institute of Physics, University of Belgrade, Pregrevica 118, Zemun, Belgrade, Serbia.
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Ana Umićević
Department of Nuclear and Plasma Physics, Vinča Institute of Nuclear Sciences – National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522,11001 Belgrade, Serbia.
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Valentin N. Ivanovski
Department of Nuclear and Plasma Physics, Vinča Institute of Nuclear Sciences – National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522,11001 Belgrade, Serbia.
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Vasil Koteski
Department of Nuclear and Plasma Physics, Vinča Institute of Nuclear Sciences – National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522,11001 Belgrade, Serbia.
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Ljubica Andjelković
University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, 11000 Belgrade, Serbia.
Abstract
Cobalt ferrite (CoFe2O4) nanoparticle were obtained by different synthesis methods: coprecipitation (CO), ultrasonically assisted coprecipitation (US-CO), coprecipitation followed by mechanochemical treatment (MC-CO), microemulsion (ME) and microwave assisted hydrothermal synthesis (MW-HT). The structure and cation distribution are investigated by XRD diffraction analysis and Raman spectroscopy. The parameters such as chemical shift, quadruple splitting and hyperfine field and site occupancy of Fe3+ were determined by Mössbauer spectroscopy. The 57Fe-Mössbauer spectrа of the CoFe2O4 wеrе measured at room temperature in ± 12 mm s-1 Doppler velocity range. The 57Fe-Mössbauerspectrа of the CoFe2O4 samples wеrе fitted with the extended Voigt-based fitting method.
