Vibrations and Berry Phases of Charged Buckminsterfullerene

Details Vibrations and Berry Phases of Charged Buckminsterfullerene Vibrations and Berry Phases of Charged Buckminsterfullerene

1993-06-03

arxiv.org/abs/cond-mat/9306009v1

Physics

Condensed Matter

Latex 11 pages. IIT-003

Scientific paper

10.1103/PhysRevLett.72.2931

A simple model of electron-vibron interactions in buckminsterfullerene ions is solved semiclassically. Electronic degeneracies of C$_{60}$$^{n-}$ induce dynamical Jahn-Teller distortions, which are unimodal for $n\!\ne\!3$ and bimodal for $n\!=\!3$. The quantization of motion along the Jahn-Teller manifold leads to a symmetric-top rotator Hamiltonian. I find Molecular Aharonov-Bohm effects where electronic Berry phases determine the vibrational spectra, zero point fluctuations, and electrons' pair binding energies. The latter are relevant to superconductivity in alkali-fullerenes.

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