Many-body effects of Coulomb interaction on Landau levels in graphene

Many-body effects in graphene beyond the Dirac model with Coulomb interaction

Novel electric field effects on Landau levels in graphene.

A new effect in graphene in the presence of crossed uniform electric and magnetic fields is predicted. Landau levels are shown to be modified in an unexpected fashion by the electric field, leading to a collapse of the spectrum, when the value of electric to magnetic field ratio exceeds a certain critical value. Our theoretical results, strikingly different from the standard 2D electron gas, ar...

Many-body exchange-correlation effects in graphene

We calculate, within the leading-order dynamical-screening approximation, the electron self-energy and spectral function at zero temperature for extrinsic (or gated/doped) graphene. We also calculate hot carrier inelastic scattering due to electron–electron interactions in graphene. We obtain the inelastic quasiparticle lifetimes and associated mean free paths from the calculated self-energy. T...

Coulomb drag in high Landau levels

I. V. Gornyi,1,* A. D. Mirlin,1,2,† and F. von Oppen3,4 1Institut für Nanotechnologie, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany 2Institut für Theorie der Kondensierten Materie, Universität Karlsruhe, D-76128 Karlsruhe, Germany 3Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel 4Institut für Theoretische Physik, Freie Universität Berlin, ...

Many-body effects on graphene conductivity: Quantum Monte Carlo calculations