Emergent scale invariance of non-classical plasmons in graphene nanoribbons
arXiv:1807.04552 · doi:10.1103/PhysRevB.98.155412
Abstract
Using a nearest-neighbor tight-binding model we investigate quantum effects of plasmons on few-nanometer wide graphene nanoribbons, both for zigzag and armchair edge terminations. With insight from the Dirac description we find an emerging scale-invariant behavior that deviates from the classical model both for zigzag and armchair structures. The onset of the deviation can be related to the position of the lowest parabolic band in the band structure. Dirac theory is only valid in the parameter subspace where the scale invariance holds that relates narrow ribbons with high doping to wide ribbons with low doping. We also find that the edge states present in zigzag ribbons give rise to a blueshift of the plasmon, in contrast to earlier findings for graphene nanodisks and nanotriangles.
References in corpus (30)
- Electric Field Effect in Atomically Thin Carbon Films
- The electronic properties of graphene
- Graphene Photonics and Optoelectronics
- Graphene plasmonics
- Dielectric function, screening, and plasmons in 2D graphene
- On-surface synthesis of graphene nanoribbons with zigzag edge topology
- Graphene Plasmonics for Terahertz to Mid-Infrared Applications
- Electronic States of Graphene Nanoribbons
- Graphene Plasmonics: Challenges and Opportunities
- Dynamical polarization of graphene at finite doping
- Mid-infrared plasmons in scaled graphene nanostructures
- Nonlocal optical response in metallic nanostructures
- Giant edge state splitting at atomically precise zigzag edges
- Plasmonics in Dirac systems: from graphene to topological insulators
- An Introduction to Graphene Plasmonics
- Edge and surface plasmons in graphene nanoribbons
- Graphene-plasmon polaritons: From fundamental properties to potential applications
- Energy levels of triangular and hexagonal graphene quantum dots: a comparative study between the tight-binding and the Dirac approach
- Tunable mid-infrared coherent perfect absorption in a graphene meta-surface
- Classical and Quantum Plasmonics in Graphene Nanodisks: the Role of Edge States
- Plasmonic eigenmodes in individual and bow-tie graphene nanotriangles
- Optical Properties of Graphene Nanoflakes: Shape Matters
- Plasmon dispersion in semimetallic armchair graphene nanoribbons
- Modeling the Excitation of Graphene Plasmons in Periodic Grids of Graphene Ribbons: An Analytical Approach
- Experimental demonstration of graphene plasmons working close to the near-infrared window
- Geometric universality of plasmon modes in graphene nanoribbon arrays
- Optical signatures of nonlocal plasmons in graphene
- Electron polarization function and plasmons in metallic armchair graphene nanoribbons
- Strong plasmon-phonon splitting and hybridization in 2D materials revealed through a self-energy approach
- Elementary Electronic Excitations in Graphene Nanoribbons
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- Optical response of two-dimensional Dirac materials with a flat band
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- Optical properties of two dimensional Dirac Weyl materials with a flatband
- Edge-dependent reflection and inherited fine structure of higher-order plasmons in graphene nanoribbons
- Transport in armchair graphene nanoribbons and in ordinary waveguides