Energy spectrum of fullerene C60 is calculated in the approximation of static fluctuations within the Hubbard model. Allowed optical transitions are chosen in the approximation of molecular orbitals, and the optical absorption spectrum is simulated. A good qualitative agreement with the available experimental data is obtained not only in the short-wavelength range, but also in the visible range. This demonstrates the correctness of the approach to the study of fullerenes as systems with strong correlations.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 88–93, June, 2016.
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Lobanov, B.V., Murzashev, A.I. Optical Absorption of Fullerene C60 Within the Concept of a Strongly Correlated State. Russ Phys J 59, 856–861 (2016). https://doi.org/10.1007/s11182-016-0845-1
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DOI: https://doi.org/10.1007/s11182-016-0845-1