Negative differential resistance in Van der Waals heterostructures due to moiré-induced spectral reconstruction
arXiv:1802.08100 · doi:10.1103/PhysRevApplied.10.034014
Abstract
Formation of moiré superlattices is common in Van der Waals heterostructures as a result of the mismatch between lattice constants and misalignment of crystallographic directions of the constituent two-dimensional crystals. We discuss theoretically electron transport in a Van der Waals tunnelling transistor in which one of the electrodes is made of two crystals forming a moiré superlattice at their interface. By investigating structures containing either the aligned graphene/hexagonal boron nitride heterostructure or twisted bilayer graphene, we show that negative differential resistance is possible in such transistors as a consequence of the superlattice-induced changes in the electronic density of states and without the need of momentum conserving tunnelling present in high-quality exfoliated devices.
References in corpus (35)
- 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
- Field-effect tunneling transistor based on vertical graphene heterostructures
- Landau level degeneracy and quantum Hall effect in a graphite bilayer
- Vertical Field Effect Transistor based on Graphene-WS2 Heterostructures for flexible and transparent electronics
- Graphene bilayer with a twist: electronic structure
- Observation of Van Hove singularities in twisted graphene layers
- Emergence of Superlattice Dirac Points in Graphene on Hexagonal Boron Nitride
- Cross-sectional imaging of individual layers and buried interfaces of graphene-based heterostructures and superlattices
- Resonant tunnelling and negative differential conductance in graphene transistors
- Raman spectroscopy study of rotated double-layer graphene: Misorientation-angle dependence of electronic structure
- Twist-controlled resonant tunnelling in graphene-boron nitride-graphene heterostructures
- Unravelling the intrinsic and robust nature of van Hove singularities in twisted bilayer graphene
- Electrons and phonons in single layers of hexagonal indium chalcogenides from ab initio calculations
- Generic Miniband Structure of Graphene on a Hexagonal Substrate
- Topological mosaic in Moiré superlattices of van der Waals heterobilayers
- Band Structure Engineering of 2D Materials using Patterned Dielectric Superlattices
- Second generation Dirac cones and inversion symmetry breaking induced gaps in graphene/hexagonal boron nitride
- Zero Energy Modes and Gate-Tunable Gap in Graphene on hexagonal Boron Nitride
- Gate-Tunable Resonant Tunneling in Double Bilayer Graphene Heterostructures
- Ballistic miniband conduction in a graphene superlattice
- Local spectroscopy of moiré-induced electronic structure in gate-tunable twisted bilayer graphene
- Band Symmetries and Singularities in Twisted Multilayer Graphene
- Quantum-Confined Electronic States arising from Moiré Pattern of MoS2-WSe2 Hetero-bilayers
- Charge inversion and topological phase transition at a twist angle induced van Hove singularity of bilayer graphene
- Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures
- Moiré band model and band gaps of graphene on hexagonal boron nitride
- Electronic Hybridization of Large-Area Stacked Graphene Films
- Moire superlattice effects in graphene/boron-nitride van der Waals heterostructures
- Gate-dependent Pseudospin Mixing in Graphene/Boron Nitride Moire Superlattices
- Kekule' textures, pseudo-spin one Dirac cones and quadratic band crossings in a graphene-hexagonal indium chalcogenide bilayer
- Moiré minibands in graphene heterostructures with almost commensurate sqrt3 x sqrt3 hexagonal crystals
- Moire miniband features in the angle-resolved photoemission spectra of graphene/hBN heterostructures
- Controlled formation of an isolated miniband in bilayer graphene on an almost commensurate substrate