2009/12/07 by K. M. Borysenko, J. T. Mullen, Jeffrey T. Mullen +10 · 1 citation
Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Condensed matter physics #Electron #Graphene #Graphene research and applications #Materials science #Monolayer #Nanotechnology #Perturbation theory (quantum mechanics) #Phonon #Physics #Quantum mechanics #Scattering #Thermal properties of materials #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.81.121412
12 pages, 4 figures
arxiv created 2009/12/07 · openalex publication_date 2010/03/16 · arxiv updated 2015/05/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The electron-phonon interaction in monolayer graphene is investigated using density-functional perturbation theory. The results indicate that the electron-phonon interaction strength is of comparable magnitude for all four in-plane phonon branches and must be considered simultaneously. Moreover, the calculated scattering rates suggest an acoustic-phonon contribution that is much weaker than previously thought, revealing an important role of optical phonons even at low energies. Accordingly it is predicted, in good agreement with a recent measurement, that the intrinsic mobility of graphene may be more than an order of magnitude larger than the already high values reported in suspended samples.