Efficient quantum transport simulation for bulk graphene heterojunctions

Abstract

The quantum transport formalism based on tight-binding models is known to be powerful in dealing with a wide range of open physical systems subject to external driving forces but is, at the same time, limited by the memory requirement's increasing with the number of atomic sites in the scattering region. Here we demonstrate how to achieve an accurate simulation of quantum transport feasible for experimentally sized bulk graphene heterojunctions at a strongly reduced computational cost. Without free tuning parameters, we show excellent agreement with a recent experiment on Klein backscattering [A. F. Young and P. Kim, Nature Phys. 5, 222 (2009)].

5 pages, 3 figures

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Cited by in corpus (19)

• The recursive Green's function method for graphene
• Ballistic interferences in suspended graphene
• Fabry-Pérot interference in gapped bilayer graphene with broken anti-Klein tunneling
• The Electronic Thickness of Graphene
• Tuning anti-Klein to Klein tunneling in bilayer graphene
• Twist- and gate-tunable proximity spin-orbit coupling, spin relaxation anisotropy, and charge-to-spin conversion in heterostructures of graphene and transition-metal dichalcogenides
• Scattering-induced and highly tunable by gate damping-like spin-orbit torque in graphene doubly proximitized by two-dimensional magnet Cr${}_2$Ge${}_2$Te${}_6$ and WS${}_2$
• Theory of carrier density in multigated doped graphene sheets with quantum correction
• Band gap and broken chirality in single-layer and bilayer graphene
• Electrostatic Superlattices on Scaled Graphene Lattices
• Theory of spin-orbit induced spin relaxation in functionalized graphene
• Large-scale tight-binding simulations of quantum transport in ballistic graphene
• General Green's function formalism for layered systems: Wave function approach
• Quantum capacitive coupling between large-angle twisted graphene layers
• Cloning of Zero Modes in One-Dimensional Graphene Superlattices
• Characterization of Hydrogen Plasma Defined Graphene Edges
• Gate-induced carrier density modulation in bulk graphene: Theories and electrostatic simulation using Matlab pdetool
• Four-band effective square lattice model for Bernal-stacked bilayer graphene
• Reconciling Kubo and Keldysh Approaches to Fermi-Sea-Dependent Nonequilibrium Observables: Application to Spin Hall Current and Spin-Orbit Torque in Spintronics