Effect of disorder on a graphene p-n junction

Abstract

We propose the theory of transport in a gate-tunable graphene p-n junction, in which the gradient of the carrier density is controlled by the gate voltage. Depending on this gradient and on the density of charged impurities, the junction resistance is dominated by either diffusive or ballistic contribution. We find the conditions for observing ballistic transport and show that in existing devices they are satisfied only marginally. We also simulate numerically the trajectories of charge carriers and illustrate challenges in realizing more delicate ballistic effects, such as Veselago lensing.

(v2)Version accepted to Phys. Rev. B

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Cited by in corpus (56)

• The electronic properties of graphene
• Electronic transport in two dimensional graphene
• Andreev reflection and Klein tunneling in graphene
• First-principles study of the interaction and charge transfer between graphene and metals
• Evidence of Klein tunneling in graphene p-n junctions
• Electron-electron interactions and doping dependence of the two-phonon Raman intensity in graphene
• Electronic properties of graphene-based bilayer systems
• Evidence of the role of contacts on the observed electron-hole asymmetry in graphene
• The role of contacts in graphene transistors: A scanning photocurrent study
• Electronic properties of mesoscopic graphene structures: charge confinement and control of spin and charge transport
• Klein tunneling in graphene: optics with massless electrons
• Klein Backscattering and Fabry-Perot Interference in Graphene Heterojunctions
• Top-gated graphene field-effect-transistors formed by decomposition of SiC
• Nonlinear screening and ballistic transport in a graphene p-n junction
• Effect of radiation on transport in graphene
• Smooth electron waveguides in graphene
• Fabrication of Graphene p-n-p Junctions with Contactless Top Gates
• Nonlinear screening of charges induced in graphene by metal contacts
• Density-Functional Theory of Graphene Sheets
• Atomic collapse, Lorentz boosts, Klein scattering, and other quantum-relativistic phenomena in graphene
• Contact resistance and shot noise in graphene transistors
• Transport and localization in periodic and disordered graphene superlattices
• Theory of charged impurity scattering in two dimensional graphene
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• Quasi-exact solution to the Dirac equation for the hyperbolic secant potential
• Conductance of disordered graphene superlattice
• Ultrafast, Zero-Bias, Graphene Photodetectors with Polymeric Gate Dielectric on Passive Photonic Waveguides
• Electronic properties of the armchair graphene nanoribbon
• Electrical Transport in High Quality Graphene pnp Junctions
• Neutrality point of graphene with coplanar charged impurities
• Dirac electrons in graphene-based quantum wires and quantum dots
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• Two-dimensional electronic transport on the surface of 3D topological insulators
• Resonant plasmonic terahertz detection in graphene split-gate field-effect transistors with lateral p-n junctions
• Ultra-sharp lateral $p\text{-}n$ junctions in modulation-doped graphene
• Role of different scattering mechanisms on the temperature dependence of transport in graphene
• Terahertz Transverse-Electric- and Transverse-Magnetic-polarized waves localized on graphene in photonic crystals
• Electron Flow in Circular n-p Junctions of Bilayer Graphene
• Advanced piezoresistance of extended metal/insulator core shell nanoparticle assemblies
• On the applicability of the two-band model to describe transport across n-p junctions in bilayer graphene
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• Geometric phase at graphene edge
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• Aperiodic conductivity oscillations in quasi-ballistic graphene heterojunctions
• Ballistic transport properties in pristine-doped-pristine graphene junctions
• Anderson transition in one-dimensional systems with spatial disorder
• Nanoscale ferroelectric programming of van der Waals heterostructures
• Electronic response of graphene to linelike charge perturbations
• Surface Transport and Quantum Hall Effect in Ambipolar Black Phosphorus Double Quantum Wells
• Observation of angle-dependent transmission of Dirac electrons in graphene hetero junctions
• Quantized multi-terminal resistances in ferromagnetic graphene p-n junctions
• Spatial separation of spin currents in transition metal dichalcogenides