Broken-symmetry states and phase diagram of the lowest Landau level in bilayer graphene

Details Broken-symmetry states and phase diagram of the lowest Landau level in bilayer graphene Broken-symmetry states and phase diagram of the lowest Landau level in bilayer graphene

2011-08-02

arxiv.org/abs/1108.0650v3

Phys. Rev. B 84, 235449 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

17 pages, 7 figures, references and clarifications added; v3: to match PRB version

Scientific paper

10.1103/PhysRevB.84.235449

Broken-symmetry quantum Hall (QH) states with filling factors \nu=0, \pm 1, \pm 2, \pm 3 in the lowest Landau level in bilayer graphene are analyzed by solving the gap equation in the random phase approximation. It is shown that in the plane of electric and magnetic fields, the critical line, which separates the spin and layer polarized phases at \nu=0, extends to the \nu=\pm 1 QH states. The amplitudes of the gaps in the \nu= \pm 1, \pm 3, and \nu= \pm 2 QH states are significantly smaller than the amplitude of the \nu=0 gap, due to the separate filling of the n=0,1 orbital Landau levels and the negative contribution of the Hartree term, respectively. It is shown that those values of the external electric field where the conductance is not quantized correspond to the minima of the gaps.

Affiliated with

Also associated with

No associations

Rating

Broken-symmetry states and phase diagram of the lowest Landau level in bilayer graphene does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Broken-symmetry states and phase diagram of the lowest Landau level in bilayer graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Broken-symmetry states and phase diagram of the lowest Landau level in bilayer graphene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-510576