Chiral properties of graphene h-BN hybrid systems

Abstract

The application of the chiral decomposition procedure to hybrid graphene h-BN systems revealed rules for the partition of the system into effective subsystems being bilayers plus monolayer in case the number of layers is odd. Three types of subsystems have been detected namely purely graphene bilayers and monolayers, mixed bilayers and pure h-BN monolayers depending on the hybrid composition. The effective parameters characterizing these chiral subsystems consist of the interlayer couplings and on-site potentials which shows the mechanism of compensation of the asymmetry introduced into the system by h-BN layers. For illustration, we provide a pedagogical overview about chiral tunneling in graphene subsystems (MLG, BLG) present in hybrid with one h-BN layer. We have established the parameter ranges for which the characteristic features in the spectrum are observed, such as Fabry-Pérot resonances in the case of MLG and "magic angles" in the case of effective BLG. We also consider different hybrid stacking in order to indicate effective systems with the desired properties required in the electronic and spintronic applications.

References in corpus (18)

• Electric Field Effect in Atomically Thin Carbon Films
• Boron nitride substrates for high-quality graphene electronics
• Chiral tunneling and the Klein paradox in graphene
• Unconventional Integer Quantum Hall effect in graphene
• Cross-sectional imaging of individual layers and buried interfaces of graphene-based heterostructures and superlattices
• Electronic states and Landau levels in graphene stacks
• Twist-controlled resonant tunnelling in graphene-boron nitride-graphene heterostructures
• Chiral Decomposition in the Electronic Structure of Graphene Multilayers
• Energy gap tuning in graphene on hexagonal boron nitride bilayer system
• Stability of boron nitride bilayers: Ground state energies, interlayer distances, and tight-binding description
• Gate-Tunable Resonant Tunneling in Double Bilayer Graphene Heterostructures
• Symmetry Breaking in Few Layer Graphene Films
• Pseudospin valve in bilayer graphene: towards graphene-based pseudospintronics
• Diamagnetism in disordered graphene
• Electric transport and magnetic properties in multilayer graphene
• Graphene on Hexagonal Boron Nitride
• Chiral tunneling through generic one-dimensional potential barriers in bilayer graphene
• h-BN layer induced chiral decomposition in the electronic properties of multilayer graphene