Dirac electronic states in graphene systems: Optical spectroscopy studies
arXiv:1004.2949 · doi:10.1088/0268-1242/25/6/063001
Abstract
Electronic properties of two-dimensional allotropes of carbon, such as graphene and its bilayer, multi-layer epitaxial graphene, few-layer Bernal-stacked graphene, as well as of three-dimensional bulk graphite are reviewed from the viewpoint of recent optical spectroscopy studies. Attention is focused on relativistic-like character of quasi particles in these systems, which are referred to as massless or massive Dirac fermions.
40 pages, 20 figures, to appear as a Topical Review in Semiconductor Science and Technology