| Title | Many-body exchange-correlation effects in graphene |
| Publication Type | Journal Article |
| Year of Publication | 2008 |
| Authors | E. H. Hwang, B Y-K. Hu, and S. Das Sarma |
| Journal | Physica E: Low-dimensional Systems and Nanostructures |
| Volume | 40 |
| Pagination | 1653–1655 |
| Date Published | mar |
| ISSN | 13869477 |
| Keywords | 2008, Single Fellow |
| Abstract | 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. |
| URL | http://arxiv.org/abs/0707.4674 |
