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arxiv: cond-mat/9209013 · v1 · submitted 1992-09-13 · ❄️ cond-mat

Quantum Lattice Fluctuations and Luminescence in C₆0

Barry Friedman , (Department of Physics , Texas Center for Superconductivity , University of Houston , Texas , Department of Physics , Sam Houston State University , Huntsville
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Texas) Kikuo Harigaya (Fundamental Physics Section Physical Science Division Electrotechnical Laboratory Japan)
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classification ❄️ cond-mat
keywords luminescenceagreementcollectivecoordinateappliedatomscalculatecarbon
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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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