The Nature of Quantum Hall States near the Charge Neutral Dirac Point in Graphene

Details The Nature of Quantum Hall States near the Charge Neutral Dirac Point in Graphene The Nature of Quantum Hall States near the Charge Neutral Dirac Point in Graphene

2007-05-08

arxiv.org/abs/0705.1102v2

Phys. Rev. Lett. 99, 106802 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures, to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.99.106802

We investigate the quantum Hall (QH) states near the charge neutral Dirac point of a high mobility graphene sample in high magnetic fields. We find that the QH states at filling factors $\nu=\pm1$ depend only on the perpendicular component of the field with respect to the graphene plane, indicating them to be not spin-related. A non-linear magnetic field dependence of the activation energy gap at filling factor $\nu=1$ suggests a many-body origin. We therefore propose that the $\nu=0$ and $\pm1$ states arise from the lifting of the spin and sub-lattice degeneracy of the $n=0$ LL, respectively.

Affiliated with

Also associated with

No associations

Rating

The Nature of Quantum Hall States near the Charge Neutral Dirac Point in 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 The Nature of Quantum Hall States near the Charge Neutral Dirac Point in Graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Nature of Quantum Hall States near the Charge Neutral Dirac Point in Graphene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-153760