Local Compressibility Measurements of Correlated States in Suspended Bilayer Graphene
arXiv:1009.2069 · doi:10.1103/PhysRevLett.105.256806
Abstract
Bilayer graphene has attracted considerable interest due to the important role played by many-body effects, particularly at low energies. Here we report local compressibility measurements of a suspended graphene bilayer. We find that the energy gaps at filling factors v = 4 do not vanish at low fields, but instead merge into an incompressible region near the charge neutrality point at zero electric and magnetic field. These results indicate the existence of a zero-field ordered state and are consistent with the formation of either an anomalous quantum Hall state or a nematic phase with broken rotational symmetry. At higher fields, we measure the intrinsic energy gaps of broken-symmetry states at v = 0, 1 and 2, and find that they scale linearly with magnetic field, yet another manifestation of the strong Coulomb interactions in bilayer graphene.
arXiv comment9 pages, including 4 figures and supplementary materials
References in corpus (34)
- The electronic properties of graphene
- Two-Dimensional Gas of Massless Dirac Fermions in Graphene
- Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
- Boron nitride substrates for high-quality graphene electronics
- Giant Intrinsic Carrier Mobilities in Graphene and Its Bilayer
- Landau level degeneracy and quantum Hall effect in a graphite bilayer
- Biased bilayer graphene: semiconductor with a gap tunable by electric field effect
- Unconventional quantum Hall effect and Berry's phase of 2pi in bilayer graphene
- Gate-induced insulating state in bilayer graphene devices
- Observation of Electron-Hole Puddles in Graphene Using a Scanning Single Electron Transistor
- Asymmetry gap in the electronic band structure of bilayer graphene
- Topological Mott Insulators
- Coulomb-driven broken-symmetry states in doubly gated suspended bilayer graphene
- Broken symmetry states and divergent resistance in suspended bilayer graphene
- Many-body instability of Coulomb interacting bilayer graphene: RG approach
- Pseudospin Magnetism in Graphene
- Quantum Anomalous Hall State in Bilayer Graphene
- Dynamical Screening and Ferroelectric-type Excitonic Instability in Bilayer Graphene
- Spontaneous symmetry breaking and Lifshitz transition in bilayer graphene
- Cyclotron resonance in bilayer graphene
- Electron-electron interactions in graphene bilayers
- Symmetry breaking of the zero energy Landau level in bilayer graphene
- Quantum-Hall activation gaps in graphene
- Intra-Landau level Cyclotron Resonance in Bilayer Graphene
- Measurement of the electronic compressibility of bilayer graphene
- The nature of localization in graphene under quantum Hall conditions
- Zero-energy states in corrugated bilayer graphene
- Intrinsic Zeeman Effect in Graphene
- Dynamics and phase diagram of the quantum Hall state in bilayer graphene
- Pedestrian index theorem a la Aharonov-Casher for bulk threshold modes in corrugated multilayer graphene
- Electronic compressibility of a graphene bilayer
- Probing Charging and Localization in the Quantum Hall Regime by Graphene pnp Junctions
- Compressibility of bilayer graphene
- Energy gaps at neutrality point in bilayer graphene in a magnetic field
Cited by in corpus (125)
- The electronic properties of bilayer graphene
- Fractional Chern insulators in magic-angle twisted bilayer graphene
- Spontaneous Quantum Hall States in Chirally-stacked Few-Layer Graphene Systems
- Electronic properties of graphene-based bilayer systems
- Valley Chern Numbers and Boundary Modes in Gapped Bilayer Graphene
- Transport Spectroscopy of Symmetry-Broken Insulating States in Bilayer Graphene
- Unique prospects of graphene-based THz modulators
- Gate Defined Quantum Confinement in Suspended Bilayer Graphene
- Spontaneously gapped ground state in suspended bilayer graphene
- Lattice generalization of the Dirac equation to general spin and the role of the flat band
- Chemical Potential and Quantum Hall Ferromagnetism in Bilayer Graphene
- Lattice Theory of Pseudospin Ferromagnetism in Bilayer Graphene: Competing Orders and Interaction Induced Quantum Hall States
- Electron-electron interaction and electron-hole asymmetry in bilayer graphene
- Minimum Conductivity and Evidence for Phase Transitions in Ultra-clean Bilayer Graphene
- Geometrical engineering of a two-bands Chern insulator in two dimensions with arbitrary topological index
- Electron-Hole Asymmetric Integer and Fractional Quantum Hall Effect in Bilayer Graphene
- Strained bilayer graphene: Band structure topology and Landau level spectrum
- Tunable Layer Circular Photogalvanic Effect in Twisted Bilayers
- Enhanced Thermoelectric Power in Dual-Gated Bilayer Graphene
- Electronic multicriticality in bilayer graphene
- Superconductivity and correlated phases in non-twisted bilayer and trilayer graphene
- Tunable quantum anomalous Hall octet driven by orbital magnetism in bilayer graphene
- Stacking boundaries and transport in bilayer graphene
- Wannier Function Approach to Realistic Coulomb Interactions in Layered Materials and Heterostructures
- Instabilities of interacting electrons on the honeycomb bilayer
- Antiferromagnetism in the Hubbard Model on the Bernal-stacked Honeycomb Bilayer
- Antiferromagnetic state in bilayer graphene
- Edge excitations of the canted antiferromagnetic phase of the quantum Hall state in graphene: a simplified analysis
- Transport Gap in Suspended Bilayer Graphene at Zero Magnetic Field
- Interaction induced Dirac fermions from quadratic band touching in bilayer graphene
- Distinguishing Spontaneous Quantum Hall States in Graphene Bilayers
- Fermions on bilayer graphene: symmetry breaking for B=0 and nu=0
- Pseudospin Order in Monolayer, Bilayer, and Double-Layer Graphene
- Geometrical and topological aspects of graphene and related materials
- Superconductivity from electronic interactions and spin-orbit enhancement in bilayer and trilayer graphene
- Polar Kerr Effect and Time Reversal Symmetry Breaking in Bilayer Graphene
- Weak-field Hall Resistivity and Spin/Valley Flavor Symmetry Breaking in Magic-Angle Twisted Bilayer Graphene
- Interacting electrons on trilayer honeycomb lattices
- Fictitious gauge fields in bilayer graphene
- Capacitance of Graphene Bilayer as a Which-Layer Probe
- Competing Ordered States in Bilayer Graphene
- Broken-symmetry quantum Hall states in bilayer graphene: Landau level mixing and dynamical screening
- Effective Landau Level Diagram of Bilayer Graphene
- Anisotropic Strain Induced Soliton Movement Changes Stacking Order and Bandstructure of Graphene Multilayers
- Quantum Hall ferromagnetic phases in the Landau level N=0 of a graphene bilayer
- Transport in disordered monolayer molybdenum disulfide nanoflakes: evidence for inhomogeneous charge transport
- Ferroelectric and anomalous quantum Hall states in bare rhombohedral trilayer graphene
- Broken-symmetry states and phase diagram of the lowest Landau level in bilayer graphene
- Spontaneous Layer-Pseudospin Domain Walls in Bilayer Graphene
- Energy gap of the even-denominator fractional quantum Hall state in bilayer graphene
- Enhancement of non-local exchange near isolated band-crossings in graphene
- Inherited and flatband-induced ordering in twisted graphene bilayers
- Superconductivity on the brink of spin-charge order in doped honeycomb bilayer
- Magneto-optical and optical probes of gapped ground states of bilayer graphene
- Tunable Coupling between Surface States of a Three-Dimensional Topological Insulator in the Quantum Hall Regime
- Gap generation and flat band catalysis in dice model with local interaction
- Gapless Spin Wave Transport through a Quantum Canted-Antiferromagnet
- Conductance anomaly near the Lifshitz transition in strained bilayer graphene
- Distinct Competing Ordered ν=2 States in Bilayer Graphene
- Quantum critical behavior of two-dimensional Fermi systems with quadratic band touching
- Field induced quantum-Hall ferromagnetism in suspended bilayer graphene
- Lattice Collective Modes from a Continuum Model of Magic-Angle Twisted Bilayer Graphene
- d-wave superconductivity on the honeycomb bilayer
- Temperature-dependent compressibility in graphene and two-dimensional systems
- Flat band electrons and interactions in rhombohedral trilayer graphene
- Structure and the Lamb-shift-like quantum splitting of the pseudo-zero-mode Landau levels in bilayer graphene
- Energy gaps and layer polarization of integer and fractional quantum Hall states in bilayer graphene
- Theory of integer quantum Hall effect in insulating bilayer graphene
- Time-reversal versus chiral symmetry breaking in twisted bilayer graphene
- Electron states in the field of charged impurities in two-dimensional Dirac systems
- Gross-Neveu-Heisenberg criticality from competing nematic and antiferromagnetic orders in bilayer graphene
- Electronic Instabilities of the AA-Honeycomb Bilayer
- Landau Levels of Topologically-Protected Surface States Probed by Dual-Gated Quantum Capacitance
- Spontaneous Chiral Symmetry Breaking in Bilayer Graphene
- Pseudo-magnetic field distribution and pseudo-Landau levels in suspended graphene flakes
- Transport Measurement of Landau level Gaps in Bilayer Graphene
- Multi-flavor Dirac fermions in Kekulé-distorted graphene bilayers
- Unconventional sequence of correlated Chern insulators in magic-angle twisted bilayer graphene
- Valley-Selective Topological Ordered States in Irradiated Bilayer Graphene
- Topological flat bands in a family of multilayer graphene moiré lattices
- Thermal Transport Signatures of Broken-Symmetry Phases in Graphene
- Gap generation in ABC-stacked multilayer graphene: screening vs band flattening
- Stacking Textures and Singularities in Bilayer Graphene
- Electronic Ground State in Bilayer Graphene with Realistic Coulomb Interactions
- Theory of inter-Landau level magnetoexcitons in bilayer graphene
- Quantum multicriticality of bilayer graphene in the presence of a tunable energy gap
- Weak Coupling Theory of Magic-Angle Twisted Bilayer Graphene
- Screening and gap generation in bilayer graphene
- Radio-frequency C-V measurements with sub-attofarad sensitivity
- Parallel transport and layer-resolved thermodynamic measurements in twisted bilayer graphene
- Spontaneous Layer Polarization and Conducting Domain Walls in the Quantum Hall Regime of Bilayer Graphene
- Symmetry characterization of the collective modes of the phase diagram of the quantum Hall state in graphene: Mean-field and spontaneously broken symmetries
- Layer photovoltaic effect in van der Waals heterostructures
- Excitonic Instabilities and Insulating States in Bilayer Graphene
- Half-metal and other fractional metal phases in doped AB bilayer graphene
- Topologically protected Landau levels in bilayer graphene in finite electric fields
- Tunneling Spectroscopy of Quantum Hall States in Bilayer Graphene PN Networks
- Absence of heat flow in ν = 0 quantum Hall ferromagnet in bilayer graphene
- Energetics of complex phase diagram in a tunable bilayer graphene probed by quantum capacitance
- Analytical Theory of Strongly Correlated Wigner Crystals in the Lowest Landau Level
- Quarter Metal Superconductivity
- Chirality and correlations in the spontaneous spin-valley polarization of rhombohedral multilayer graphene
- dmu/dn In suspended bilayer graphene: the interplay of disorder and band gap
- Gate-induced Gap in Bilayer Graphene Suppressed by Coulomb Repulsion
- Domain Formation Driven by the Entropy of Topological Edge Modes
- Valley polarization, magnetization, and superconductivity in bilayer graphene near the van Hove singularity
- Coulomb center instability in bilayer graphene
- The compressibility of graphene
- Landau Levels of Bilayer Graphene in a WSe/Bilayer Graphene van der Waals Heterostructure
- Inhomogeneity and nonlinear screening in gapped bilayer graphene
- Compressibility of Interacting Electrons in Bilayer Graphene
- Spectroscopic Characterization of Landau Level Splitting and the Intermediate v = 0 Phase in Bilayer Graphene
- Disorder-tuned selection of order in bilayer graphene
- Electromagnetic absorption and Kerr effect in quantum Hall ferromagnetic states of bilayer graphene
- Broken symmetry states in bilayer graphene in electric and in-plane magnetic fields
- Particle-hole symmetry and bifurcating ground state manifold in the quantum Hall ferromagnetic states of multilayer graphene
- Electron-electron interactions in non-equilibrium bilayer graphene
- Many-body effects, orbital mixing and cyclotron resonance in bilayer graphene
- Mean-field analysis of a Hubbard interaction on Bernal Bilayer Graphene
- Chiral universality class of the normal-superconducting and the exciton condensation transition on the surface of topological insulator
- Dynamical polarization in ABC-stacked multilayer graphene in a magnetic field
- Optical manifestations of symmetry breaking in bilayer graphene
- Orbital mixing in few-layer graphene and non-Abelian Berry phase
- Ordered states of undoped AB bilayer graphene: bias induced cascade of transitions
- Dispersive Gate Sensing the Quantum Capacitance of a Point Contact