MAGNETIC PROPERTIES OF (NI–CO)@C NANOCOMPOSITES: EFFECT OF CARBON

M. A. Uimin; Уймин М. А.; A. S. Konev; Конев А. С.; A. Y. Yermakov; Ермаков А. Е.; S. I. Novikov; Новиков С. И.; I. A. Kurmachev; Курмачев И. А.; V. S. Gaviko; Гавико В. С.; K. N. Mikhalev; Михалев К. Н.; D. A. Prokopyev; Прокопьев Д. А.; E. V. Suvorkova; Суворкова Е. В.; V. V. Makarov; Макаров В. В.

doi:10.31857/S0015323025060065

MAGNETIC PROPERTIES OF (NI–CO)@C NANOCOMPOSITES: EFFECT OF CARBON

作者: Uimin M.A.¹, Konev A.S.¹, Yermakov A.Y.¹^,2, Novikov S.I.¹, Kurmachev I.A.¹, Gaviko V.S.¹^,2, Mikhalev K.N.¹, Prokopyev D.A.¹, Suvorkova E.V.¹, Makarov V.V.¹
隶属关系:
1. Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences
2. Ural Federal University
期: 卷 126, 编号 6 (2025)
页面: 680-688
栏目: ЭЛЕКТРИЧЕСКИЕ И МАГНИТНЫЕ СВОЙСТВА
URL: https://journals.rcsi.science/0015-3230/article/view/322664
DOI: https://doi.org/10.31857/S0015323025060065
ID: 322664

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Nanocomposites (Ni–Co)@C with different Ni:Co ratios and core-shell structure were obtained by gas-phase 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.

关键词

nanocomposites, magnetic properties, NMR spectra, structure, nickel, cobalt, carbon

参考

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卷 126, 编号 5 (2025)

MAGNETIC PROPERTIES OF (NI–CO)@C NANOCOMPOSITES: EFFECT OF CARBON

全文:

详细

关键词

作者简介

M. Uimin

A. Konev

A. Yermakov

S. Novikov

I. Kurmachev

V. Gaviko

K. Mikhalev

D. Prokopyev

E. Suvorkova

V. Makarov

参考

补充文件