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MAGNETIC PROPERTIES OF (Ni–Co)@C NANOCOMPOSITES: EFFECT OF CARBON
- Autores: Uimin M.A.1, Konev A.S.1, Yermakov A.E.1,2, Novikov S.I.1, Kurmachev I.A.1, Gaviko V.S.1,2, Mikhalev K.N.1, Prokopiev D.A.1, Suvorkova Y.V.1, Makarov V.V.1
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Afiliações:
- Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
- Ural Federal University
- Edição: Volume 126, Nº 6 (2025)
- Páginas: 680-688
- Seção: ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
- URL: https://cijournal.ru/0015-3230/article/view/692728
- DOI: https://doi.org/10.31857/S0015323025060065
- ID: 692728
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Resumo
Nanocomposites (Ni–Co)@C with different Ni:Co ratios and core-shell structure were obtained by gasphase synthesis. Structural and phase analysis of the samples was carried out using X-ray diffraction and
transmission electron microscopy. The size of the metal core of particles, determined from X-ray data, is (7–8) nm, the shell thickness, several nm. Magnetic properties and 59Co NMR spectra were measured before and after annealing at different temperatures. The evolution of properties and NMR spectra with varying cobalt content and as a result of heat treatments is interpreted in the context of changes in the carbon content in the core of composites.
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Sobre autores
Mikhail Uimin
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Autor responsável pela correspondência
Email: uimin@imp.uran.ru
ORCID ID: 0000-0003-3906-8101
Laboratory of Applied Magnetism, leading researcher
Rússia, Ekaterinburg, 620108 RussiaAleksandr Konev
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: askonev@gmail.com
Rússia, Ekaterinburg, 620108 Russia
Anatoliy Yermakov
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences;Ural Federal University
Email: yermakov@imp.uran.ru
Rússia, Ekaterinburg, 620108 Russia;
Ekaterinburg, 620002 Russia
Sergey Novikov
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: novikovsi@internet.ru
Rússia, Ekaterinburg, 620108 Russia
Igor Kurmachev
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: kiavvvvv@gmail.com
Rússia, Ekaterinburg, 620108 Russia
Vasiliy Gaviko
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences;Ural Federal University
Email: gaviko@imp.uran.ru
Rússia, Ekaterinburg, 620108 Russia;
Ekaterinburg, 620002 Russia
Konstantin Mikhalev
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: mikhalev@imp.uran.ru
Rússia, Ekaterinburg, 620108 Russia
Dmitriy Prokopiev
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: prokopev.dima@mail.ru
Rússia, Ekaterinburg, 620108 Russia
Yekaterina Suvorkova
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: e.v.suvorkova@mail.ru
Rússia, Ekaterinburg, 620108 Russia
Vladimir Makarov
Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
Email: makarov@imp.uran.ru
Rússia, Ekaterinburg, 620108 Russia
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