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- Title
A New Type of Carbon Nanostructure on a Vicinal SiС(111)-8° Surface.
- Authors
Benemanskaya, G. V.; Dement'ev, P. A.; Kukushkin, S. A.; Osipov, A. V.; Timoshnev, S. N.
- Abstract
The electronic properties of the Ba/SiC/Si(111)-8° nanointerface have been studied for the first time by photoelectron spectroscopy using synchrotron radiation. The experiments are conducted in situ in superhigh vacuum on submonolayer Ba coatings of SiC/Si(111)-8° samples grown by the method of substitution of atoms. It is found that the adsorption of Ba causes strong changes in the spectrum of the C 1s core level. It is shown that the effect is due to the formation of a new, previously unknown carbon nanostructure. It is found that the nanostructure is formed exclusively on the SiC vicinal surfaces in the presence of stabilizing adsorbed Ba metal atoms and consists of carbon rings, in which the chemical bonds are close in nature to the bonds characteristic of aromatic compounds.
- Subjects
CHEMICAL bonds; PHOTOELECTRON spectroscopy; SYNCHROTRON radiation; AROMATIC compounds; CARBON; ATOMS
- Publication
Technical Physics Letters, 2019, Vol 45, Issue 3, p201
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/S1063785019030039