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arXiv · 1205.4907

Infrared phonon activity in pristine graphite

M. Manzardo·E. Cappelluti·E. van Heumen·A. B. Kuzmenko
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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 $\pi$-bands.

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M. Manzardo, E. Cappelluti, E. van Heumen, A. B. Kuzmenko. 2012-05-22. Infrared phonon activity in pristine graphite. https://doi.org/10.1103/physrevb.86.054302

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