Dynamic Jahn-Teller effect in C(sub 60): Self-trapped excitons and resonant Raman scattering

摘要

The dynamic Jahn-Teller problem is solved for the lowest triplet and singlet self-trapped excitons of C(sub 60). The resultant tunnel-split (sup 3)T(sub 3g)+(sup 3)T(sub 1g) states provide a good explanation for the available experimental data on the lowest triple states. The observable consequences of this dynamical symmetry breaking in the photo-induced multi-phonon resonant Raman scattering are explored in detail. The tunneling splitting itself should show up in the Raman spectrum, and the depolarization ratio (which can be normal or unusual, depending on exciting frequencies) is calculated explicitly. (author). 28 refs, 2 figs. (Atomindex citation 26:039298)