SYNTHESIS AND STRUCTURAL STUDIES OF MAGNETIC NANOPARTICLES DOPED WITH RARE-EARTH ELEMENTS
T. A. Lastovina1, A. L. Bugaev1, S. P. Kubrin2, E. A. Kudryavtsev3, A. V. Soldatov1
1International Research Center "Smart materials", Rostov-on-Don, Russia
2Research Institute of Physics, 5, Zorge St., Rostov-on-Don, 344090, Russia
3Belgorod National Research University, 85, Pobedy Str., Belgorod, 308015, Russia
Keywords: магнитные частицы, оксиды железа, мессбауэровская спектроскопия, биомедицина, magnetic particles, iron oxides, Mossbauer spectroscopy, biomedicine
Abstract
Magnetic nanoparticles and those doped with rare-earth metal ions having spinel structure were synthesized, possessing the average particles size of 11.3-13.4 nm. According to Mossbauer spectroscopy data it can be concluded that prepared iron oxide nanoparticles are γ-Fe2O3. For materials containing rare-earth elements the decrease of octahedral component surface was observed in comparison to non-doped material, what can be explained by Eu3+, Sm3+ и Gd3+ ions occupying the octahedral position.
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