| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1413909 | Carbon | 2014 | 5 Pages |
Abstract
The electronic response of self-doped graphene supported on metal substrates shows two well-distinct plasmon modes: the acoustic plasmon, characterized by a linear dispersion, and a nonlinear plasmon. The nonlinear plasmon originates from the anisotropy of the electron bands of graphene around the K point. The existence of two plasmons with a different dispersion relation demonstrates that charge carriers with different group velocity may coexist within the same band in epitaxial graphene.
Related Topics
Physical Sciences and Engineering
Energy
Energy (General)
Authors
Antonio Politano, Gennaro Chiarello,