Interaction of surface acoustic waves with electronic excitations in graphene

  title={Interaction of surface acoustic waves with electronic excitations in graphene},
  author={Alberto Hern'andez-M'inguez and Y-T Liou and Paulo Ventura Santos},
  journal={Journal of Physics D: Applied Physics},
This article reviews the main theoretical and experimental advances regarding the interaction between surface acoustic waves (SAWs) and electronic excitations in graphene. The coupling of the graphene electron gas to the SAW piezoelectric field can modify the propagation properties of the SAW, and even amplify the intensity of SAWs traveling along the graphene layer. Conversely, the periodic electric and strain fields of the SAW can be used to modify the graphene Dirac cone and to couple light… 
Acoustoelectric current in graphene due to electron deformation potential and piezoelectric phonon couplings
Recent studies strongly indicate that graphene can be used as a channel material for converting surface acoustic waves to acoustoelectric current, which is a resource for various exciting
Acoustically Induced Giant Synthetic Hall Voltages in Graphene.
Any departure from graphene's flatness leads to the emergence of artificial gauge fields that act on the motion of the Dirac fermions through an associated pseudomagnetic field. Here, we demonstrate
Layer‐Dependent Exciton Modulation Characteristics of 2D MoS2 Driven by Acoustic Waves
Acoustic waves were recently utilized to modulate and control the electronic, optical, and magnetic properties of 2D materials. Among 2D materials, the mechanically exfoliated MoS2 with a perfect
Acoustoelectric charge transport at the LaAlO3/SrTiO3 interface
The two-dimensional electron system (2DES) formed at the interface of LaAlO3 (LAO) and SrTiO3 (STO), both band insulators in bulk, exhibits properties not easily attainable in conventional electronic
Generation and Propagation of Superhigh-Frequency Bulk Acoustic Waves in GaAs
Coherent super-high-frequency (SHF) vibrations provide an excellent tool for the modulation and control of excitations in semiconductors. Here, we investigate the piezoelectric generation and
Acoustomagnetoelectric effect in two-dimensional materials: Geometric resonances and Weiss oscillations
We study electron transport in two-dimensional materials with parabolic and linear (graphene) dispersions of the carriers in the presence of surface acoustic waves and an external magnetic field
The 2019 surface acoustic waves roadmap
A snapshot of the present state of Surface Acoustic Wave science and technology in 2019 is presented and an opinion on the challenges and opportunities that the future holds is provided from a group of renown experts covering the interdisciplinary key areas.
High-frequency study of two-dimensional materials
  • K. Meng
  • Physics, Materials Science
  • 2019
Two-dimensional (2D) materials show different properties from threedimensional materials owing to the quantum confinement they have in the vertical direction (perpendicular to their plane). Graphene,
Effect of Pb(Zr0.52Ti0.48)O3 thin films on electron transport at the LaAlO3/SrTiO3 interface by surface acoustic waves
Surface acoustic waves (SAWs) are capable tools for providing mechanical control over the electronic properties of functional materials. Coupling SAWs with the LaAlO3/SrTiO3 (LAO/STO) conducting
Pseudogauge field driven acoustoelectric current in two-dimensional hexagonal Dirac materials
Using a diagrammatic scheme, we study the acoustoelectric effects in two-dimensional (2D) hexagonal Dirac materials due to the sound-induced pseudo-gauge field. We analyze both uniform and spatially


Absorption of surface acoustic waves by graphene
We present a theoretical study on interactions of electrons in graphene with surface acoustic waves (SAWs). We find that owing to momentum and energy conservation laws, the electronic transition
Acousto-electric transport in MgO/ZnO-covered graphene on SiC
We investigate the acousto-electric transport induced by surface acoustic waves (SAWs) in epitaxial graphene (EG) coated by a MgO/ZnO film. The deposition of a thin MgO layer protects the EG during
Controlling the properties of surface acoustic waves using graphene
Surface acoustic waves (SAWs) are elastic waves that propagate on the surface of a solid, much like waves on the ocean, with SAW devices used widely in communication and sensing. The ability to
Acoustoelectric Current in Graphene Nanoribbons
It is shown that an acoustoelectric current can be generated in GNRs with physical widths as small as 200 nm at room temperature, and thought to be caused by an increase of the carrier mobility due to increased doping arising from damage to the GNR edges.
Surface acoustic wave propagation in graphene film
Surface acoustic wave (SAW) propagation in a graphene film on the surface of piezoelectric crystals was studied at the BESSY II synchrotron radiation source. Talbot effect enabled the visualization
Multilayer-graphene-based amplifier of surface acoustic waves
The amplification of surface acoustic waves (SAWs) by a multilayer graphene (MLG)-based amplifier is studied. The conductivity of massless carriers (electrons or holes) in graphene in an external
Acoustic charge transport induced by the surface acoustic wave in chemical doped graphene
A graphene/LiNbO3 hybrid device is used to investigate the acoustic induced charge transport in chemical doped graphene. The chemical doping of graphene via its physisorption of gas molecules affects
Gate-tuning of graphene plasmons revealed by infrared nano-imaging
Using infrared nano-imaging, it is shown that common graphene/SiO2/Si back-gated structures support propagating surface plasmons and changes both the amplitude and the wavelength are altered by varying the gate voltage.
Acoustically-driven surface and hyperbolic plasmon-phonon polaritons in graphene/h-BN heterostructures on piezoelectric substrates
Surface plasmon polaritons in graphene couple strongly to surface phonons in polar substrates leading to hybridized surface plasmon-phonon polaritons (SPPPs). We demonstrate that a surface acoustic
Ultra-low acoustoelectric attenuation in graphene
We investigate the acoustoelectric properties of graphene and extract its acoustoelectric attenuation Γ as a function of the carrier density n, tuned via ionic liquid gating. Acoustoelectric effects