Design of electron wave filters in monolayer graphene by tunable transmission gap

Abstract

We have investigated the transmission in monolayer graphene barrier at nonzero angle of incidence. Taking the influence of parallel wave vector into account, the transmission as the function of incidence energy has a gap due to the evanescent waves in two cases of Klein tunneling and classical motion. The modulation of the transmission gap by the incidence angle, the height, and width of potential barrier may lead to potential applications in graphene-based electronic devices.

4 pages, 5 figures

References in corpus (9)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Chiral tunneling and the Klein paradox in graphene
• Unconventional Integer Quantum Hall effect in graphene
• Andreev reflection and Klein tunneling in graphene
• Transport measurements across a tunable potential barrier in graphene
• Magnetic confinement of massless Dirac fermions in graphene
• Theory of huge tunneling magnetoresistance in graphene
• Wavevector filtering through single-layer and bilayer graphene with magnetic barrier structures

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• Transmission gap, Bragg-like reflection, and Goos-Hänchen shifts near the Dirac point inside a negative-zero-positive index metamaterial slab
• Electronic fibre in graphene
• Double-periodic quasi-periodic graphene superlattice: non-Bragg band gap and electronic transport
• Gate-controlled valley transport and Goos-Hänchen effect in monolayer WS${}_2$
• Geometric effects on the electronic structure and the bound states in annular corrugated wires
• Physical Properties of Zener Tunnelling Nano-devices in Graphene
• Mode-selective cloaking and phase-matching cavity resonances in bilayer graphene transport
• Mode-Resolved Multiband Ballistic Transport and Conductance Thresholds in Bilayer Graphene Junctions