| Issue |
EPL
Volume 84, Number 3, November 2008
|
|
|---|---|---|
| Article Number | 37001 | |
| Number of page(s) | 3 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/84/37001 | |
| Published online | 07 October 2008 | |
Optical properties of graphene: The Fermi-liquid approach
Institute for Molecules and Materials, Radboud University Nijmegen - 6525 ED Nijmegen, The Netherlands, EU
Corresponding author: M.Katsnelson@science.ru.nl
Received:
5
September
2008
Accepted:
23
September
2008
Optical properties of two-dimensional massless Dirac fermions are considered by the formalism of pseudospin precession equations which provides an easy and natural semiphenomenological way to include correlation effects. It is shown that the latter are negligible, with the only assumption that the system under consideration is normal Fermi-liquid. This result probably explains recent experimental data on the universal optical conductivity of graphene (Nair R. R. et al., Science, 320 (2008) 1308).
PACS: 78.20.Bh – Theory, models, and numerical simulation / 81.05.Uw – Carbon, diamond, graphite / 71.10.Ay – Fermi-liquid theory and other phenomenological models
© EPLA, 2008
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