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Optics and Spectroscopy, 2023 Volume 131, Issue 4, Pages 534–542 (Mi os1343)

Spectroscopy and physics of atoms and molecules

Energy spectrum and optical properties of bromide fullerene C$_{70}$Br$_{10}$ within the Hubbard model

A. V. Silant'ev

Mari State University, 424001 Yoshkar-Ola, Russia

Abstract: The energy spectrum of molecule C$_{70}$Br$_{10}$ of symmetry group Cs were obtained within the Hubbard model in the mean-field approximation. Using group theory methods, the classification of energy states was carried out, and the allowed transitions in the energy spectrum of bromide fullerene C$_{70}$Br$_{10}$ of symmetry group Cs were determined. On the basis of this spectrum, an interpretation of experimentally observed optical absorption bands of molecule C$_{70}$Br$_{10}$ is proposed.

Keywords: Hubbard model, Green’s functions, energy spectrum, nanosystems, C$_{70}$, C$_{70}$Br$_{10}$.

Received: 11.09.2022
Revised: 15.03.2023
Accepted: 15.03.2023

DOI: 10.21883/OS.2023.04.55559.4138-22



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