Guiding of Electrons in a Few Mode Ballistic Graphene Channel

Abstract

In graphene, the extremely fast charge carriers can be controlled by electron-optical elements, such as waveguides, in which the transmissivity is tuned by the wavelength. In this work, charge carriers are guided in a suspended ballistic few-mode graphene channel, defined by electrostatic gating. By depleting the channel, a reduction of mode number and steps in the conductance are observed, until the channel is completely emptied. The measurements are supported by tight-binding transport calculations including the full electrostatics of the sample.

Including supporting information

References in corpus (21)

• Chiral tunneling and the Klein paradox in graphene
• Dyadic Green's Functions and Guided Surface Waves for a Surface Conductivity Model of Graphene
• Room Temperature All Semiconducting sub-10nm Graphene Nanoribbon Field-Effect Transistors
• Quantum interference and Klein tunneling in graphene heterojunctions
• Veselago Lens for Electrons: Focusing and Caustics in Graphene p-n Junctions
• Selective transmission of Dirac electrons and ballistic magnetoresistance of \textit{n-p} junctions in graphene
• Phase Coherent Transport of Charges in Graphene Quantum Billiard
• Transport measurements across a tunable potential barrier in graphene
• Quantum Goos-Hanchen effect in graphene
• Gate-controlled Guiding of Electrons in Graphene
• Conductance of p-n-p graphene structures with 'air-bridge' top gates
• Quantized conductance of a suspended graphene nanoconstriction
• Snake Trajectories in Ultraclean Graphene p-n Junctions
• Gate defined zero- and one-dimensional confinement in bilayer graphene
• Scalable Tight-Binding Model for Graphene
• Guided modes in graphene waveguides
• Large yield production of high mobility freely suspended graphene electronic devices on a PMGI based organic polymer
• Snake States in Graphene p-n Junctions
• Electronic fibre in graphene
• Fabrication of ballistic suspended graphene with local-gating
• Homogeneity of Bilayer Graphene

Cited by in corpus (42)

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• Ballistic transport exceeding 28 μm in CVD grown graphene
• Creating and Steering Highly Directional Electron Beams in Graphene
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• Valley filtering and electronic optics using polycrystalline graphene
• Gate tuneable beamsplitter in ballistic graphene
• Electron optics in phosphorene pn junctions: Negative reflection and anti super-Klein tunneling
• Fabry-Pérot resonances in a graphene/hBN Moiré superlattice
• Commensurability Oscillations in One-Dimensional Graphene Superlattices
• Chaos in Dirac electron optics: Emergence of a relativistic quantum chimera
• Guiding Dirac fermions in graphene with a carbon nanotube
• Absence of a giant spin Hall effect in plasma-hydrogenated graphene
• Partial positive refraction in asymmetric Veselago lenses of uniaxially strained graphene
• Dirac fermion reflector by ballistic graphene sawtooth-shaped npn junctions
• Large intravalley scattering due to pseudo-magnetic fields in crumpled graphene
• Chiral interface states in graphene $p$-$n$ junctions
• Phosphorene pnp junctions as perfect electron waveguides
• Bipolar electron waveguides in graphene
• Dirac fermion optics and directed emission from single- and bilayer graphene cavities
• Controlling electron flow in anisotropic Dirac materials heterojunctions: a super-diverging lens
• Graphene whisperitronics: transducing whispering gallery modes into electronic transport
• Guided modes and terahertz transitions for two-dimensional Dirac fermions in a smooth double-well potential
• Signatures of single quantum dots in graphene nanoribbons within the quantum Hall regime
• Mapping borophene onto graphene: Quasi-exact solutions for guiding potentials in tilted Dirac cones
• Oscillating magnetoresistance in graphene p-n junctions at intermediate magnetic fields
• Valley splitter and transverse valley focusing in twisted bilayer graphene
• Decay of semiclassical massless Dirac fermions from integrable and chaotic cavities
• Point contacts in encapsulated graphene
• In situ tuning of symmetry-breaking induced non-reciprocity in giant-Rashba semiconductor BiTeBr
• Graphene $n$-$p$ junctions in the Quantum Hall regime: numerical study of incoherent scattering effects
• Chaos based Berry phase detector
• Design of graphene waveguide: Effect of edge orientation and waveguide configuration
• Dirac electrons in the presence of matrix potential barrier: application to graphene and topological insulators
• Manipulating electron waves in graphene using carbon nanotube gating
• Perfectly Conducting Graphene Electronic Waveguide with Curved Channels
• Coherent Transport in Y-Junction Graphene Waveguide
• Contact-less characterizations of encapsulated graphene p-n junctions
• Geometric interference in a high-mobility graphene annulus p-n junction device
• Intermediate diffusive-ballistic electron conduction around mesoscopic defects in graphene
• Can graphene bilayers be the membrane mimetic materials? "Ion channels" in graphene-based nanostructures
• Ballistic guided electrons against disorder in graphene nanoribbons
• Active spatial control of terahertz graphene plasmons by tailoring carrier density profile