Doubled Moiré Flat Bands in Double-twisted Few Layer Graphite
arXiv:2104.06860 · doi:10.1007/s11433-022-1993-7
Abstract
We study the electronic structure of a double-twisted few layer graphite (DTFLG), which consists of three few layer graphite (FLG), i.e. ABA-stacked graphene multilayer, stacked with two twist angles. We consider two categories of DTFLG, alternately twisted case and chirally twisted one, according to the rotation direction of the two twist angles. We show that, once the middle FLG of DTFLG is not thinner than trilayer, both kinds of DTFLG can remarkably host two pairs of degenerate moiré flat bands (MFBs) at , twice that of the magic angle twisted bilayer graphene (TBG). The doubled MFBs of DTFLG lead to doubled DOS at , which implies much stronger correlation effects than the TBG. The degeneracy of MFBs can be lifted by a perpendicular electric field, and the isolated MFBs have nonzero valley Chern number. We also reveal the peculiar wave function patterns of the MFBs in the DTFLG. Our results establish a new family of moiré systems that have the much larger DOS at , and thus possible much stronger correlation effects.
arXiv comment6 pages, 4 figures
References in corpus (53)
- Magic-angle graphene superlattices: a new platform for unconventional superconductivity
- Correlated Insulator Behaviour at Half-Filling in Magic Angle Graphene Superlattices
- Moire bands in twisted double-layer graphene
- Tuning superconductivity in twisted bilayer graphene
- Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene
- Superconductors, Orbital Magnets, and Correlated States in Magic Angle Bilayer Graphene
- Graphene bilayer with a twist: electronic structure
- Intrinsic quantized anomalous Hall effect in a moiré heterostructure
- Chern Numbers in Discretized Brillouin Zone: Efficient Method of Computing (Spin) Hall Conductances
- Magic Angle Spectroscopy
- Tunable Phase Boundaries and Ultra-Strong Coupling Superconductivity in Mirror Symmetric Magic-Angle Trilayer Graphene
- Topological insulators in twisted transition metal dichalcogenide homobilayers
- Electric Field Tunable Correlated States and Magnetic Phase Transitions in Twisted Bilayer-Bilayer Graphene
- Charge-Order and Broken Rotational Symmetry in Magic Angle Twisted Bilayer Graphene
- Signatures of Gate-Tunable Superconductivity in Trilayer Graphene/Boron Nitride Moiré Superlattice
- Continuum Model of the Twisted Bilayer
- Spin-polarized Correlated Insulator and Superconductor in Twisted Double Bilayer Graphene
- Evidence of Gate-Tunable Mott Insulator in Trilayer Graphene-Boron Nitride Moiré Superlattice
- Correlated states in twisted double bilayer graphene
- Theory of phonon-mediated superconductivity in twisted bilayer graphene
- Nearly Flat Chern Bands in Moiré Superlattices
- Electrical switching of magnetic order in an orbital Chern insulator
- Chiral SDW and d + id superconductivity in the magic-angle twisted bilayer-graphene
- Electrically tunable correlated and topological states in twisted monolayer-bilayer graphene
- Magic Angle Hierarchy in Twisted Graphene Multilayers
- Theory of correlated insulating behaviour and spin-triplet superconductivity in twisted double bilayer graphene
- Flatbands in twisted double bilayer graphene
- Band structure and topological property of twisted double bilayer graphenes
- Visualization of the flat electronic band in twisted bilayer graphene near the magic angle twist
- Gate-Tunable Topological Flat Bands in Trilayer Graphene-Boron Nitride Moiré Superlattices
- Correlated insulating phases of twisted bilayer graphene at commensurate filling fractions: a Hartree-Fock study
- Pairing symmetry of interacting fermions on twisted bilayer graphene superlattice
- Twisted Trilayer Graphene: a Precisely Tunable Platform for Correlated Electrons
- Moiré Flat Bands in Twisted Double Bilayer Graphene
- Giant Orbital Magneto-electric effect and Current-driven Magnetization Switching in Twisted Bilayer Graphene
- Coexistence of ultraheavy and ultrarelativistic Dirac quasiparticles in sandwiched trilayer graphene
- Flat bands and perfect metal in trilayer moiré graphene
- Electronic Properties of Twisted Trilayer Graphene
- Topological flat bands in twisted trilayer graphene
- Double moiré with a twist: super-moiré in encapsulated graphene
- Twists and The Electronic Structure of Graphitic Materials
- Moiré of Moiré: Modeling Mechanical Relaxation in Incommensurate Trilayer van der Waals Heterostructures
- Mirror Symmetry Breaking and Lateral Stacking Shifts in Twisted Trilayer Graphene
- Ferromagnetism and superconductivity in twisted double bilayer graphene
- Three-Dimensional Topological Twistronics
- Electronic structure calculations of twisted multi-layer graphene superlattices
- Scanning tunneling microscopy and spectroscopy of twisted trilayer graphene
- Topological charge pumping by sliding moiré pattern
- Lattice relaxation, mirror symmetry and magnetic field effects on ultraflat bands in twisted trilayer graphene
- Stacking and gate tunable topological flat bands, gaps and anisotropic strip patterns in twisted trilayer graphene
- Alternating twisted mutilayer graphene: generic partition rules, double flat bands, and orbital magnetoelectric effect
- Moire Band Structures of the Double twisted Few Layer Graphene
- LAN -- A materials notation for 2D layered assemblies
Cited by in corpus (6)
- Magic-angle helical trilayer graphene
- Multi-scale lattice relaxation in general twisted trilayer graphenes
- Intrinsically-multilayer moiré heterostructures
- Moir{é} pattern assisted geometric resonant tunneling in disordered twisted bilayer graphene
- Moiré Band Engineering in Twisted Trilayer WSe2
- Topological Floquet Flat Bands in Irradiated Alternating Twist Multilayer Graphene