Intra-Landau-level cyclotron resonance in bilayer graphene.
Interaction driven integer quantum-Hall effects are anticipated in graphene bilayers because of the near degeneracy of the eight Landau levels which appear near the neutral system Fermi level. We predict that an intra-Landau-level cyclotron resonance signal will appear at some odd-integer filling factors, accompanied by collective modes which are nearly gapless and have approximate k3/2 dispersion. We speculate on the possibility of unusual localization physics associated with these modes.
Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA.
Yafis
Y
Barlas
R
R
Côté
K
K
Nomura
A H
AH
MacDonald