Investigating the fine structure of near-edge X-ray absorption in the molecular spectra of C60F18 adsorbed on a single nickel crystal |
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Authors: | A M Lebedev K A Menshikov N Yu Svechnikov L P Sukhanov R G Chumakov M M Brzhezinskaya V G Stankevich |
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Institution: | 1. National Research Center Kurchatov Institute, Moscow, 123182, Russia 2. BESSY, 12489, Berlin, Germany
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Abstract: | Angular dependences of the fine structure of near-edge X-ray absorption (NEXAFS) of carbon C1s spectra are obtained for a monolayer film of C60F18 polar molecules on a Ni (100) substrate. The fine structure and angular dependences of these spectra are interpreted using calculation data obtained by the density functional method upon fitting NEXAFS spectra by the set of trial functions. It is shown that during deposition, the dipole moment of molecules is oriented perpendicular to the surface and fluorine atoms are the ones closest to the surface. |
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