Formation of Nanocomposites on the Surface of Silicon Carbide Crystals under Impact of Iron Fluxes
The formation of graphene–iron composite structures on the surface of cleavages of silicon carbide single crystals using vacuum thermal destruction with simultaneous deposition of iron atoms has been investigated. The effect of the iron deposition rate on the formation of single- and multilayer graphene structures is established. It is shown by X-ray photoelectron and Raman spectroscopy that iron partially dissolves in the graphene structures without formation of nanocrystallites, clusters, etc.
This study was supported by the Federal Agency for Scientific Organizations (contract no. 007-ГЗ/Ч3363/26). The Raman studies were supported by the Russian Science Foundation (grant no. 14-12-00848–P). The XPS investigations of the composite structures were carried out in the framework of the state task for the Udmurt Federal Research Center, Russian Academy of Sciences, Ural Branch (state registration no. AAAA-A17-117022250040-0) using equipment of the Center of Collective Use for Surface Investigations and Physicochemical Analysis of the Udmurt Federal Research Center.
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