Abstract.
We have determined the electronic bandstructure of clean and potassium-doped single layer graphene, and fitted the graphene π bands to a one- and three-near-neighbor tight binding model. We characterized the quasiparticle dynamics using angle resolved photoemission spectroscopy. The dynamics reflect the interaction between holes and collective excitations, namely plasmons, phonons, and electron-hole pairs. Taking the topology of the bands around the Dirac energy for n-doped graphene into account, we compute the contribution to the scattering lifetimes due to electron-plasmon and electron phonon coupling.
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Bostwick, A., Ohta, T., McChesney, J. et al. Band structure and many body effects in graphene. Eur. Phys. J. Spec. Top. 148, 5–13 (2007). https://doi.org/10.1140/epjst/e2007-00220-x
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DOI: https://doi.org/10.1140/epjst/e2007-00220-x