Quantum Lattice Fluctuations and Luminescence in C_60

Details Quantum Lattice Fluctuations and Luminescence in C_60 Quantum Lattice Fluctuations and Luminescence in C_60

1992-09-13

arxiv.org/abs/cond-mat/9209013v1

Phys. Rev. B 47 (1993) 3975-3978

Physics

Condensed Matter

Scientific paper

10.1103/PhysRevB.47.3975

We consider luminescence in photo-excited neutral C_60 using the Su-Schrieffer-Heeger model applied to a single C_60 molecule. To calculate the luminescence we use a collective coordinate method where our collective coordinate resembles the displacement of the carbon atoms of the Hg(8) phonon mode and extrapolates between the ground state "dimerisation" and the exciton polaron. There is good agreement for the existing luminescence peak spacing and fair agreement for the relative intensity. We predict the existence of further peaks not yet resolved in experiment. PACS Numbers : 78.65.Hc, 74.70.Kn, 36.90+f

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