Open AccessНовый тип углеродной наноструктуры на вицинальной поверхности SiС(111)-8-=SUP=-o-=/SUP=-
Author(s) -
Г.В. Бенеманская,
П.А. Дементьев,
С.А. Кукушкин,
А.В. Осипов,
С.Н. Тимошнев
Publication year - 2019
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2019.05.47390.17621
Subject(s) - vicinal , x ray photoelectron spectroscopy , nanostructure , adsorption , carbon fibers , materials science , synchrotron radiation , chemical bond , atom (system on chip) , crystallography , chemistry , nanotechnology , chemical engineering , organic chemistry , physics , quantum mechanics , composite number , computer science , engineering , composite material , embedded system
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 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.