Plasma-chemical Synthesis of Fe3O4 Nanoparticles for Doping of High-Temperature Superconductors

Ушаков, А. В.; Карпов, И. В.; Лепешев, А. А.

doi:10.1007/s10948-016-3709-6

Author:

Ушаков, А. В.

Карпов, И. В.

Лепешев, А. А.

Corporate Contributor:

Институт нефти и газа

Общеуниверситетская кафедра ЮНЕСКО «Новые материалы и технологии»

Научно-исследовательская часть

Date:

2016-09

Journal Name:

Journal of Superconductivity and Novel Magnetism

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Bibliographic Citation:

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. 1-6

Abstract:

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.

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