We study experimentally and theoretically the Fano-shaped phonon peak at 1590 cm-1 (0.2 eV) in the in-plane optical conductivity of pristine graphite. We show that the anomalously large spectral weight and the Fano asymmetry of the peak can be qualitatively accounted for by a charged-phonon theory. A crucial role in this context is played by the particle-hole asymmetry of the electronic ? bands.
Infrared phonon activity in pristine graphite
E Cappelluti;
2012
Abstract
We study experimentally and theoretically the Fano-shaped phonon peak at 1590 cm-1 (0.2 eV) in the in-plane optical conductivity of pristine graphite. We show that the anomalously large spectral weight and the Fano asymmetry of the peak can be qualitatively accounted for by a charged-phonon theory. A crucial role in this context is played by the particle-hole asymmetry of the electronic ? bands.File in questo prodotto:
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