Electronic sound modes and plasmons in hydrodynamic two-dimensional metals
Andrew Lucas,Sankar Das Sarma +1 more
TLDR
In this article, an analytically tractable kinetic model of a two-dimensional Fermi liquid of electrons is used to characterize the crossovers among zero sound, first sound, and plasmons.Abstract:
Using an analytically tractable kinetic model of a two-dimensional Fermi liquid of electrons, we characterize the crossovers among zero sound, first sound, and plasmons. For experimentally realized Fermi liquids in a hydrodynamic limit, both zero and first sound waves are essentially replaced by plasmons. The plasmon dispersion relation is robust against hydrodynamic effects up to acquiring the viscous-limited decay rate of a first sound wave in the hydrodynamic limit. We discuss implications for experiments in clean two-dimensional electron gases.read more
Citations
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Superballistic flow of viscous electron fluid through graphene constrictions
Denis A. Bandurin,Roshan Krishna Kumar,Yang Cao,Francesco M. D. Pellegrino,Marco Polini,Leonid Levitov,Andre K. Geim,Denis Bandurin Team +7 more
TL;DR: In this paper, the authors studied electron transport through graphene constrictions and showed that their conductance below 150 K increases with increasing temperature, in stark contrast to the metallic character of doped graphene.
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Gapped momentum states
TL;DR: Gapped momentum states (GMS) as mentioned in this paper have important implications for dynamical and thermodynamic properties of the system, starting from ordinary liquids to holographic models, and they have been increasingly appreciated that GMS has important implications.
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Assembly of Gold Nanoparticles into Chiral Superstructures Driven by Circularly Polarized Light.
Ji Young Kim,Jihyeon Yeom,Gongpu Zhao,Gongpu Zhao,Heather A. Calcaterra,Jiyoun Munn,Peijun Zhang,Peijun Zhang,Nicholas A. Kotov +8 more
TL;DR: It is shown that illumination of gold salt solutions with circularly polarized light induces the formation of NPs and their subsequent assembly into chiral nanostructures 10-15 nm in diameter, and the resulting nanocolloids showed circular dichroism (CD) spectra with opposite polarity after exposure to photons with left and right circular polarization.
Journal ArticleDOI
Quantum nanophotonics in two-dimensional materials
Antoine Reserbat-Plantey,Itai Epstein,Itai Epstein,Iacopo Torre,Antonio Costa,Paulo André Dias Gonçalves,N. Asger Mortensen,N. Asger Mortensen,Marco Polini,Marco Polini,Marco Polini,Justin C. W. Song,Justin C. W. Song,Nuno M. R. Peres,Frank H. L. Koppens,Frank H. L. Koppens +15 more
TL;DR: In this paper, the authors acknowledge support from the Spanish Ministry of Science, Innovation and Universities (MCIU) and State Research Agency (AEI) via the Juan de la Cierva Fellowship No. 726001.
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Hydrodynamic-to-ballistic crossover in Dirac materials
TL;DR: In this article, an exactly solvable classical kinetic model of transport in Dirac materials was developed to track the evolution of graphene conductivity and properties of its collective excitations across the hydrodynamic-to-ballistic crossover.
References
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Journal ArticleDOI
Electronic properties of two-dimensional systems
TL;DR: In this paper, the electronic properties of inversion and accumulation layers at semiconductor-insulator interfaces and of other systems that exhibit two-dimensional or quasi-two-dimensional behavior, such as electrons in semiconductor heterojunctions and superlattices and on liquid helium, are reviewed.
BookDOI
Theory Of Quantum Liquids
TL;DR: In this article, the two-fluid model is used to model elementary excitement in He II and the response to a transverse probe is described as a superfluid flow.
Journal ArticleDOI
The theory of quantum liquids
TL;DR: In this paper, the two-fluid model is used to describe the behavior of a superfluid in response to a transverse probe in a two-fluid model.
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Dielectric function, screening, and plasmons in 2D graphene
E. H. Hwang,S. Das Sarma +1 more
TL;DR: In this article, the wave vector dependent plasmon dispersion and the static screening function of the Coulomb interaction in 2D graphene layer were found in the self-consistent field approximation.
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Dielectric function, screening, and plasmons in two-dimensional graphene
Euyheon Hwang,S. Das Sarma +1 more
TL;DR: In this paper, the dispersion of the plasmon mode and the electrostatic screening of the Coulomb interaction in two-dimensional (2D) graphene layer within the random-phase approximation is calculated in the selfconsistent field approximation.