G. V. Benemanskaya, P. A. Dementev, S. A. Kukushkin, A. V. Osipov, S. N. Timoshnev, “A new type of carbon nanostructure on a vicinal SiС(111)-8<nobr>$^\circ$</nobr> surface”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2019, Volume 45, Issue 5,Pages <nobr>17

This article is cited in 8 papers

A new type of carbon nanostructure on a vicinal SiС(111)-8$^\circ$ surface

G. V. Benemanskaya^ab, P. A. Dementev^a, S. A. Kukushkin^cbd, A. V. Osipov^c, S. N. Timoshnev^be

^a Ioffe Institute, St. Petersburg
^b Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg
^c St. Petersburg National Research University of Information Technologies, Mechanics and Optics
^d Peter the Great St. Petersburg Polytechnic University
^e Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg

Abstract: The electronic properties of the Ba/SiC/Si(111)-8$^\circ$ 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$^{\circ}$ 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 1$s$ 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.

Received: 04.12.2018
Revised: 04.12.2018
Accepted: 05.12.2018

DOI: 10.21883/PJTF.2019.05.47390.17621