Geodesic
Role of carbon in the formation of the structure and magnetic properties of Ni-CN$_x$ nanoclusters under reactive magnetron deposition
Nanosistemy: fizika, himiâ, matematika, Tome 8 (2017) no. 6, pp. 804-808.

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Nanostructured hybrid Ni-CN$_x$ films were grown by magnetron sputtering of a composite graphite-nickel target. Atomic force microscopy showed the clustered nature of the films deposition on the substrate surface: a relatively high pressure in the low-temperature magnetron plasma made it possible to form the Ni@CN$_x$ nanoclusters type “core-shell”, where metallic nickel is the core and carbon nitride is the shell. When studying the role of carbon in the formation of the structure and properties of Ni@CN$_x$ nanoclusters, it was established that the saturation magnetization 4$\pi$M$_s$ of nanoclusters drops sharply with a carbon content above 30 at.%. The reason is the formation of an increasingly saturated solid solution of carbon in nickel. At a carbon concentrations above 38 at.%, amorphous Ni-CN$_x$ nanoclusters are formed in the magnetron plasma, which are deposited on the substrate. An increase in the substrate temperature leads to the crystallization of Ni atoms, and the C and N atoms are forced out onto the surface of the nickel core, forming an array of Ni-CN$_x$ elements.
Keywords: nanoclusters, magnetron sputtering.
Mots-clés : carbon nitride 
@article{NANO_2017_8_6_a13,
     author = {R. V. Shalayev and V. N. Varyukhin and A. M. Prudnikov and A. I. Linnik and V. V. Syrotkin},
     title = {Role of carbon in the formation of the structure and magnetic properties of {Ni-CN}$_x$ nanoclusters under reactive magnetron deposition},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {804--808},
     publisher = {mathdoc},
     volume = {8},
     number = {6},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2017_8_6_a13/}
}
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R. V. Shalayev; V. N. Varyukhin; A. M. Prudnikov; A. I. Linnik; V. V. Syrotkin. Role of carbon in the formation of the structure and magnetic properties of Ni-CN$_x$ nanoclusters under reactive magnetron deposition. Nanosistemy: fizika, himiâ, matematika, Tome 8 (2017) no. 6, pp. 804-808. http://geodesic.mathdoc.fr/item/NANO_2017_8_6_a13/