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.
Quantum capacitance and Landau parameters of massless Dirac fermions in graphene
Polini M
2014
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.File in questo prodotto:
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