Plasmons and magnetoplasmons in partially bounded two-layer electron systems

Abstract

We have analytically studied plasmons in an electron system comprised of two spatially separated layers -- an infinite two-dimensional electron system (2DES) and a 2D strip. Our analysis reveals the existence of plasmon modes that are localized near and propagate along the strip. These modes are characterized by the wave vector in the direction of the strip, as well as the number of charge density nodes, N, across the strip. In the long-wavelength limit, the fundamental mode N=0 is found to have gapless linear dispersion. When the external perpendicular magnetic field is applied, this mode remains gapless and exhibits peculiar magnetodispersion. We analyze the correlation between our findings and the previously established results on plasmons in gated and partially gated 2DESs.

arXiv comment8 pages, 4 figures

References in corpus (16)

• Highly confined low-loss plasmons in graphene-boron nitride heterostructures
• Ultrastrong coupling of the cyclotron transition of a two-dimensional electron gas to a THz metamaterial
• Probing the Ultimate Plasmon Confinement Limits with a Van der Waals heterostructure
• Resonant Terahertz Detection Using Graphene Plasmons
• Field Effect Transistors for Terahertz Detection: Physics and First Imaging Applications
• Plasmonic terahertz detection by a double-grating-gate field-effect transistor structure with an asymmetric unit cell
• Induced transparency by coupling of Tamm and defect states in tunable terahertz plasmonic crystals
• Coulomb Drag as a Probe of Coupled Plasmon Modes in Parallel Quantum Wells
• Plasmons in coupled bilayer structures
• Chiral plasmon in gapped Dirac systems
• Inducing an Incipient Terahertz Finite Plasmonic Crystal in Coupled Two Dimensional Plasmonic Cavities
• Novel relativistic plasma excitations in a gated two-dimensional electron system
• Tight-binding terahertz plasmons in chemical vapor deposited graphene
• Interaction of gated and ungated plasmons in two-dimensional electron systems
• Novel 2D Plasmon Induced by Metal Proximity
• Exact solution for driven oscillations in plasmonic field-effect transistors

Cited by in corpus (2)

• Impact of electron correlations on two-particle charge response in electron- and hole-doped cuprates
• Quasi-stationary near-gate plasmons in van der Waals heterostructures