Excitonic gap, phase transition, and quantum Hall effect in graphene
arXiv:cond-mat/0605348 · doi:10.1103/PHYSREVB.74.195429
Abstract
We suggest that physics underlying the recently observed removal of sublattice and spin degeneracies in graphene in a strong magnetic field describes a phase transition connected with the generation of an excitonic gap. The experimental form of the Hall conductivity is reproduced and the main characteristics of the dynamics are described. Predictions of the behavior of the gap as a function of temperature and a gate voltage are made.
Revtex4, 10 pages, 4 figures, text essentially extended, one figure and references added; v3: to match PRB version
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- Theory of interacting electrons on the honeycomb lattice
- Dissipative Quantum Hall Effect in Graphene near the Dirac Point
- Anomalous Absorption Line in the Magneto-Optical Response of Graphene
- Theory of integer quantum Hall effect in graphene
- Thermo-Plasma Polariton within Scaling Theory of Single-Layer Graphene
- Divergent resistance at the Dirac point in graphene: Evidence for a transition in a high magnetic field
- Gravity Dual of a Quantum Hall Plateau Transition
- SO(3) symmetry between Neel and ferromagnetic order parameters for graphene in a magnetic field
- Spontaneous Symmetry Breaking and Quantum Hall Effect in Graphene
- Odd-Integer Quantum Hall Effect in Graphene: Interaction and Disorder Effects
- Intrinsic Zeeman Effect in Graphene
- Dynamics in the quantum Hall effect and the phase diagram of graphene
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- Chiral asymmetry of the Fermi surface in dense relativistic matter in a magnetic field
- Edge states, mass and spin gaps, and quantum Hall effect in graphene
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- Magnetotransport and thermoelectricity in disordered graphene
- Edge states on graphene ribbon in magnetic field: interplay between Dirac and ferromagnetic-like gaps
- Quantum critical scaling in magnetic field near the Dirac point in graphene
- Supersymmetry and Correlated Electrons in Graphene Quantum Hall Effect
- Quantum Hall effect in bilayer and multilayer graphenes with finite gate voltage
- The enigma of the nu=0 quantum Hall effect in graphene
- Coupled charge and valley excitations in graphene quantum Hall ferromagnets
- Toward theory of quantum Hall effect in graphene
- Lattice-Induced Double-Valley Degeneracy Lifting in Magnetic Field in Graphene
- Quantum Hall ferromagnetism in graphene: a SU(4) bosonization approach
- Quantum Hall plateau transition in the lowest Landau level of disordered graphene
- Observation of half-integer quantum Hall effect in single-layer graphene using pulse magnet
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