Research paperTheoreticalComputational MultiscaleInfluence of the Dirac Sea on Phase Transitions in Monolayer Graphene under Strong Magnetic FieldsGuopeng Xu, Chunli HuangarXiv·2024·arXiv:2411.16986AbstractWe study quantum Hall phase transitions in monolayer graphene under strong magnetic fields by combining renormalization-group flow of interaction couplings from the lattice scale to the magnetic length with self-consistent Hartree-Fock calculations. The resulting phase diagrams show first-order transitions between canted antiferromagnetic, Kekulé-distorted, charge-density-wave, and spin-polarized Kekulé-distorted states, with the Dirac sea contributing substantially to the magnetic anisotropic energy at small dielectric screening.Read more
Monolayer graphene in a magnetic field with BN dielectric screening / sublattice potential environment used for the phase-diagram calculations.No measurements recordedSimulatedCStudied MaterialBNSubstrate / DielectricExpand
Research paperTheoreticalComputational MultiscaleInfluence of the Dirac Sea on Phase Transitions in Monolayer Graphene under Strong Magnetic FieldsGuopeng Xu, Chunli HuangarXiv·2024·arXiv:2411.16986AbstractWe study quantum Hall phase transitions in monolayer graphene under strong magnetic fields by combining renormalization-group flow of interaction couplings from the lattice scale to the magnetic length with self-consistent Hartree-Fock calculations. The resulting phase diagrams show first-order transitions between canted antiferromagnetic, Kekulé-distorted, charge-density-wave, and spin-polarized Kekulé-distorted states, with the Dirac sea contributing substantially to the magnetic anisotropic energy at small dielectric screening.Read more
Monolayer graphene in a magnetic field with BN dielectric screening / sublattice potential environment used for the phase-diagram calculations.No measurements recordedSimulatedCStudied MaterialBNSubstrate / DielectricExpand
Research paperTheoreticalComputational MultiscaleInfluence of the Dirac Sea on Phase Transitions in Monolayer Graphene under Strong Magnetic FieldsGuopeng Xu, Chunli HuangarXiv·2024·arXiv:2411.16986AbstractWe study quantum Hall phase transitions in monolayer graphene under strong magnetic fields by combining renormalization-group flow of interaction couplings from the lattice scale to the magnetic length with self-consistent Hartree-Fock calculations. The resulting phase diagrams show first-order transitions between canted antiferromagnetic, Kekulé-distorted, charge-density-wave, and spin-polarized Kekulé-distorted states, with the Dirac sea contributing substantially to the magnetic anisotropic energy at small dielectric screening.Read more
Monolayer graphene in a magnetic field with BN dielectric screening / sublattice potential environment used for the phase-diagram calculations.No measurements recordedSimulatedCStudied MaterialBNSubstrate / DielectricExpand
Research paperTheoreticalComputational MultiscaleInfluence of the Dirac Sea on Phase Transitions in Monolayer Graphene under Strong Magnetic FieldsGuopeng Xu, Chunli HuangarXiv·2024·arXiv:2411.16986AbstractWe study quantum Hall phase transitions in monolayer graphene under strong magnetic fields by combining renormalization-group flow of interaction couplings from the lattice scale to the magnetic length with self-consistent Hartree-Fock calculations. The resulting phase diagrams show first-order transitions between canted antiferromagnetic, Kekulé-distorted, charge-density-wave, and spin-polarized Kekulé-distorted states, with the Dirac sea contributing substantially to the magnetic anisotropic energy at small dielectric screening.Read more
Monolayer graphene in a magnetic field with BN dielectric screening / sublattice potential environment used for the phase-diagram calculations.No measurements recordedSimulatedCStudied MaterialBNSubstrate / DielectricExpand