Isospin and momentum polarized orders in bilayer graphene
arXiv:2110.15254 · doi:10.1103/PhysRevB.107.075108
Abstract
Electron bands in the untwisted bilayer graphene flatten out in a transverse electric field, offering a promising platform for correlated electron physics. We predict that the spin/valley isospin magnetism, resembling that seen in moiré bands, coexists with momentum-polarized phases occurring via a ``flocking transition'' in momentum space. This transition results in the electron momentum distribution being spontaneously displaced relative to the and valley centers. These phases feature unusual observables such as persistent currents in the ground state. Momentum-polarized carriers ``sample'' the Berry curvature of the conduction band, resulting in a unique behavior of the anomalous Hall conductivity and other effects that do not occur in previously studied systems.
arXiv comment10pgs, 2fgs
References in corpus (43)
- Magic-angle graphene superlattices: a new platform for unconventional superconductivity
- Berry Phase Effects on Electronic Properties
- Correlated Insulator Behaviour at Half-Filling in Magic Angle Graphene Superlattices
- Moire bands in twisted double-layer graphene
- Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene
- Graphene bilayer with a twist: electronic structure
- Intrinsic quantized anomalous Hall effect in a moiré heterostructure
- The electronic properties of bilayer graphene
- Magic Angle Spectroscopy
- Flat Bands in Slightly Twisted Bilayer Graphene
- Imaging Electronic Correlations in Twisted Bilayer Graphene near the Magic Angle
- Charge-Order and Broken Rotational Symmetry in Magic Angle Twisted Bilayer Graphene
- Commensuration and Interlayer Coherence in Twisted Bilayer Graphene
- Cascade of Phase Transitions and Dirac Revivals in Magic Angle Graphene
- Topological Superconductivity in Twisted Multilayer Graphene
- Isospin magnetism and spin-triplet superconductivity in Bernal bilayer graphene
- Nematicity and Competing Orders in Superconducting Magic-Angle Graphene
- Strong coupling phases of partially filled twisted bilayer graphene narrow bands
- Half and quarter metals in rhombohedral trilayer graphene
- Transport Spectroscopy of Symmetry-Broken Insulating States in Bilayer Graphene
- Interaction-Driven Spectrum Reconstruction in Bilayer Graphene
- Electrostatic effects, band distortions and superconductivity in twisted graphene bilayers
- Unconventional Superconductivity and Density Waves in Twisted Bilayer Graphene
- Pseudospin Magnetism in Graphene
- Phases of a phenomenological model of twisted bilayer graphene
- Entropic evidence for a Pomeranchuk effect in magic angle graphene
- Ferromagnetic Mott State in Twisted Graphene Bilayers at the Magic Angle
- Imaging orbital ferromagnetism in a moiré Chern insulator
- Quantum cascade of new correlated phases in trigonally warped bilayer graphene
- Possible correlated insulating states in magic-angle twisted bilayer graphene under strongly competing interactions
- Cascade of isospin phase transitions in Bernal bilayer graphene at zero magnetic field
- Collective Excitations of Quantum Anomalous Hall Ferromagnets in Twisted Bilayer Graphene
- Electronic properties of a biased graphene bilayer
- Low density ferromagnetism in biased bilayer graphene
- Nematic topological semimetal and insulator in magic angle bilayer graphene at charge neutrality
- Electronic multicriticality in bilayer graphene
- Nematic superconductivity stabilized by density wave fluctuations: Possible application to twisted bilayer graphene
- A chiral twist on the high- phase diagram in Moiré heterostructures
- Acoustic-phonon-mediated superconductivity in Bernal bilayer graphene
- Ferromagnetism and superconductivity in twisted double bilayer graphene
- Persistent Current States in Bilayer Graphene
- Quantum multicriticality of bilayer graphene in the presence of a tunable energy gap
- First order ferromagnetic phase transition in the low electronic density regime of a biased graphene bilayer
Cited by in corpus (22)
- Orbital Multiferroicity in Pentalayer Rhombohedral Graphene
- Tunable superconductivity in electron- and hole-doped Bernal bilayer graphene
- Spin and Orbital Metallic Magnetism in Rhombohedral Trilayer Graphene
- Spin-triplet superconductivity at the onset of isospin order in biased bilayer graphene
- Nematicity and Orbital Depairing in Superconducting Bernal Bilayer Graphene with Strong Spin Orbit Coupling
- Flavor symmetry breaking in spin-orbit coupled bilayer graphene
- Correlated Phases in Spin-Orbit-Coupled Rhombohedral Trilayer Graphene
- Angle-resolved transport nonreciprocity and spontaneous symmetry breaking in twisted trilayer graphene
- Gate-Defined Topological Josephson Junctions in Bernal Bilayer Graphene
- Gate-tunable topological phases in superlattice modulated bilayer graphene
- Symmetry-broken metallic orders in spin-orbit-coupled Bernal bilayer graphene
- Chirality and correlations in the spontaneous spin-valley polarization of rhombohedral multilayer graphene
- Chiral Wigner crystal phases induced by Berry curvature
- Optical Properties of Gated Bilayer Graphene Quantum Dots with Trigonal Warping
- Signatures of electronic ordering in transport in graphene flat bands
- Correlated phases in rhombohedral multilayer graphene
- Full, three-quarter, half and quarter Wigner crystals in Bernal bilayer graphene
- Nematic Enhancement of Superconductivity in Multilayer Graphene via Quantum Geometry
- Hexagonal boron nitride/bilayer graphene moiré superlattices in the Dirac-material family: energy-band engineering and carrier doping by dual gating
- Ordered states in AB bilayer graphene in SU(4)-symmetric model
- Various electronic crystal phases in rhombohedral graphene multilayers
- Quantum geometric tensor in systems with fractional band dispersion