Iron-Doped (La,Sr)MnO3 Manganites as Promising Mediators of Self-Controlled Magnetic Nanohyperthermia.

Author(s) Shlapa, Y.; Kulyk, M.; Kalita, V.; Polek, T.; Tovstolytkin, A.; Greneche, J.M.; Solopan, S.; Belous, A.
Journal Nanoscale Res Lett
Date Published 2016 Dec
Abstract

Fe-doped La0.77Sr0.23Mn1 - y Fe y O3 nanoparticles have been synthesized by sol-gel method, and ceramic samples based on them were sintered at 1613 K. Crystallographic and magnetic properties of obtained nanoparticles and ceramic samples have been studied. It has been established that cell volume for nanoparticles increases with growing of iron content, while this dependence displays an opposite trend in the case of ceramic samples. Mössbauer investigations have shown that in all samples, the oxidation state of iron is +3. According to magnetic studies, at room temperature, both nanoparticles and ceramic samples with y ≤ 0.06 display superparamagnetic properties and samples with y ≥ 0.08 are paramagnetic. Magnetic fluids based on La0.77Sr0.23Mn1 - y Fe y O3 nanoparticles and aqua solution of agarose have been prepared. It has been established that heating efficiency of nanoparticles under an alternating magnetic field decreases with growing of iron content.

DOI 10.1186/s11671-015-1223-6
ISSN 1931-7573
Citation Shlapa Y, Kulyk M, Kalita V, Polek T, Tovstolytkin A, Greneche J-, et al. Iron-Doped (La,Sr)MnO3 Manganites as Promising Mediators of Self-Controlled Magnetic Nanohyperthermia. Nanoscale Res Lett. 2016;11(1):24.

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