Open AccessFullerite C60 optical constants in the C 1s NEXAFS region
Author(s) -
Danil V. Sivkov,
С. В. Некипелов,
О. В. Петрова,
D V Bogachuk,
Roman N. Skandakov,
В. Н. Сивков
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2103/1/012168
Subject(s) - xanes , absorption (acoustics) , refraction , attenuation coefficient , absorption edge , analytical chemistry (journal) , spectral line , atomic physics , absorption spectroscopy , chemistry , extended x ray absorption fine structure , materials science , optics , physics , band gap , optoelectronics , chromatography , astronomy , composite material
Using data on the absorption cross sections the refraction coefficient spectral dependence n ( E ) and the spectra of the remaining optical coefficients (reflection coefficient, phase shift, and atomic form factor) in the fullerite C 60 C 1s near edge X-ray absorption fine structure (NEXAFS) region (280–350 eV) were determined. For the n ( E ) calculations the Kramers-Kronig integral relations (KKRs) were used. The KKR computations were performed using data on atomic carbon absorption cross sections in the 10–30000 eV range and on solid and gaseous C 60 – in the 0–120 eV. Absorption cross section spectrum in the fullerite C 60 C 1s NEXAFS region were measured.