Plasma-chemical Synthesis of Fe3O4 Nanoparticles for Doping of High-Temperature Superconductors
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https://elib.sfu-kras.ru/handle/2311/27933Дата:
2016-09Журнал:
Journal of Superconductivity and Novel MagnetismКвартиль журнала в Scopus:
Q3Квартиль журнала в Web of Science:
Q3Библиографическое описание:
Ушаков, А. В. Plasma-chemical Synthesis of Fe3O4 Nanoparticles for Doping of High-Temperature Superconductors [Текст] / А. В. Ушаков, И. В. Карпов, А. А. Лепешев // Journal of Superconductivity and Novel Magnetism. — 2016. — Т. 29. — С. 1-6Аннотация:
Ferrite nanoparticles (Fe3O4) have been produced by the direct low-pressure plasma-chemical synthesis. X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), vibration magnetometry (VSM), and Mössbauer spectroscopy (NGR) were used for measurements, showing that the produced nanoparticles have an average size of 9.4 nm, a crystalline phase of magnetite, possess a property of superparamagnetism at room temperature, and have a blocking temperature of 89 K. The peculiarities of nanoparticle behavior in the magnetic field, related to a large specific surface area, are discussed.