2007/07/31 by E. H. Hwang, Ben Yu-Kuang Hu, S. Das Sarma · 1 citation
Materials Science · Physics and Astronomy · #Condensed matter physics #Dispersion (optics) #Electron #Energy exchange #Graphene #Graphene research and applications #Inelastic scattering #Materials science #Physics #Quantum and electron transport phenomena #Quantum mechanics #Quasiparticle #Scattering #Semiconductor #Topological Materials and Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1016/j.physe.2007.10.043
published as Physica E 40, 1653 (2008) · Submitted on July 8, 2007 to EP2DS-17, Genova, Italy
arxiv created 2007/07/31 · openalex publication_date 2007/10/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We calculate, within the leading-order dynamical-screening approximation, the electron self-energy and spectral function at zero temperature for extrinsic (or gated/doped) graphene. We also calculate hot carrier inelastic scattering due to electron-electron interactions in graphene. We obtain the inelastic quasiparticle lifetimes and associated mean free paths from the calculated self-energy. The linear dispersion and chiral property of graphene gives energy dependent lifetimes that are qualitatively different from those of parabolic-band semiconductors.