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- Title
Quantum capacitance and Landau parameters of massless Dirac fermions in graphene.
- Authors
Asgari, Reza; Katsnelson, Mikhail I.; Polini, Marco
- Abstract
Extensive numerical results for the thermodynamic density of states (i.e. quantum capacitance) of a two-dimensional massless Dirac fermion fluid in a doped graphene sheet are presented. In particular, by employing the random phase approximation, the impact of screening exerted by a metal gate located nearby a graphene flake is quantified. Finally, the spin- and circularly-symmetric Landau parameter, which can be experimentally extracted from independent measurements on the same setup of the quantum capacitance and quasiparticle velocity, is calculated.
- Subjects
QUANTUM capacitance; FERMIONS; FERMI liquids; GRAPHENE; QUASIPARTICLES
- Publication
Annalen der Physik, 2014, Vol 526, Issue 9/10, p359
- ISSN
0003-3804
- Publication type
Article
- DOI
10.1002/andp.201400167