Dimensionally mixed coupled collective modes

Abstract

We develop the diagrammatic formulation of the many-body theory for the coupled collective modes in interacting electron systems of different dimensions. The formalism is then applied in detail to a two-dimensional system coupled to a three-dimensional electron gas. We find two dimensionally-mixed plasmon modes which in the long wavelength limit are respectively 3D-like and acoustic in nature, but are strongly coupled at larger wave vectors. The same formalism can be applied to any dimensional combinations, and we also present the results for 1D-2D and 1D-3D coupled systems.

5 pages, 3 figures

References in corpus (5)

• Dielectric function, screening, and plasmons in 2D graphene
• Collective modes of the massless Dirac plasma
• Plasmonics with two-dimensional semiconductors "beyond graphene": from basic research to technological applications
• Plasmon signature in Dirac-Weyl liquids
• Plasmon modes of a massive Dirac plasma, and their superlattices

Cited by in corpus (3)

• Coulomb drag between a carbon nanotube and monolayer graphene
• Electrostatic Langmuir and SEAWs in spin polarized plasma double layer
• Plasmons in N-layer systems