Optical properties of the vibrations in charged C$_{60}$ molecules

Arthur P. Smith; George F. Bertsch

doi:10.1103/physrevb.53.7002

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Optical properties of the vibrations in charged C$_{60}$ molecules

Arthur P. Smith·George F. Bertsch

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Abstract

The transition strengths for the four infrared-active vibrations of charged C$_{60}$ molecules are evaluated in self-consistent density functional theory using the local density approximation. The oscillator strengths for the second and fourth modes are strongly enhanced relative to the neutral C$_{60}$ molecule, in good agreement with the experimental observation of ``giant resonances'' for those two modes. Previous theory, based on a ``charged phonon'' model, predicted a quadratic dependence of the oscillator strength on doping, but this is not borne out in our calculations.

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Arthur P. Smith, George F. Bertsch. 1995-12-04. Optical properties of the vibrations in charged C$_{60}$ molecules. https://doi.org/10.1103/physrevb.53.7002

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