Magnetic State and Phase Composition of Co3C Nanoparticles
- Autores: Mikhalev K.1, Germov A.1, Medvedev E.1, Gerashchenko A.1, Ermakov A.1, Uimin M.1, Novikov S.1, D’yachkova T.2, Tyutyunnik A.2, Zainulin Y.2
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Afiliações:
- Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences
- Edição: Volume 120, Nº 10 (2019)
- Páginas: 930-935
- Seção: Electrical and Magnetic Properties
- URL: https://journals.rcsi.science/0031-918X/article/view/168731
- DOI: https://doi.org/10.1134/S0031918X19100090
- ID: 168731
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Resumo
Nanoparticles Co3C were prepared using solid-phase synthesis under high pressure. The phase composition of the nanoparticles has been analyzed; the magnetization has been measured and 59Со NMR spectra in a local field have been recorded. It is shown that Co3C is a ferromagnet with the Curie temperature TC = 498(10) K. The hyperfine fields and components of electric field gradient tensor were determined for two nonequivalent Co positions in the carbide. The obtained hyperfine fields correspond to the spin state of Co ions S = 1.
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Sobre autores
K. Mikhalev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Autor responsável pela correspondência
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620108
A. Germov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620108
E. Medvedev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620108
A. Gerashchenko
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620108
A. Ermakov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620108
M. Uimin
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620108
S. Novikov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620108
T. D’yachkova
Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620990
A. Tyutyunnik
Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620990
Yu. Zainulin
Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620990