MAGNETIC PROPERTIES OF (Ni–Co)@C NANOCOMPOSITES: EFFECT OF CARBON

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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.

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 Russia

Aleksandr 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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