Surface acoustic wave induced phenomena in two-dimensional materials

X Nie, X Wu, Y Wang, S Ban, Z Lei, J Yi, Y Liu… - Nanoscale …, 2023 - pubs.rsc.org
Surface acoustic wave (SAW)–matter interaction provides a fascinating key for inducing and
manipulating novel phenomena and functionalities in two-dimensional (2D) materials. The …

Electrically driven amplification of terahertz acoustic waves in graphene

AH Barajas-Aguilar, J Zion, I Sequeira… - Nature …, 2024 - nature.com
In graphene devices, the electronic drift velocity can easily exceed the speed of sound in the
material at moderate current biases. Under these conditions, the electronic system can …

Quantum kinetic theory of nonlinear optical currents: Finite Fermi surface and Fermi sea contributions

P Bhalla, K Das, A Agarwal, D Culcer - Physical Review B, 2023 - APS
The quantum kinetic framework provides a versatile method for investigating the dynamical
optical and transport currents of crystalline solids. In this paper, starting from the density …

Nonreciprocal phonon dichroism induced by Fermi pocket anisotropy in two-dimensional Dirac materials

WY Shan - Physical Review Research, 2023 - APS
Electrons in two-dimensional (2D) Dirac materials carry local band geometric quantities,
such as the Berry curvature and orbital magnetic moments, which, combined with electron …

Valley spin-acoustic resonance in monolayers

K Sonowal, DV Boev, AV Kalameitsev, VM Kovalev… - Physical Review B, 2022 - APS
The band structure of a monolayer MoS 2 comprises spin-split subbands, owing to the
mutual presence of broken inversion symmetry and strong spin-orbit coupling. In the …

Acoustomagnonic Spin Hall Effect in Honeycomb Antiferromagnets

R Sano, Y Ominato, M Matsuo - Physical Review Letters, 2024 - APS
The recently discovered Van der Waals antiferromagnets have suffered from the lack of a
comprehensive method to study their magnetic properties. Here, we propose an ac intrinsic …

[HTML][HTML] Manipulation of flying and single excitons by GHz surface acoustic waves

M Yuan, K Biermann, PV Santos - AVS Quantum Science, 2022 - pubs.aip.org
An important prerequisite for quantum communication networks is the transfer and
manipulation of single particles on a chip as well as their interconversion to single photons …

Response of Raman-active modes in monolayer to charge doping

W Yang, SB Fu, Y Lu, KY Zhang, JM Liu, HR Gao… - Physical Review B, 2022 - APS
Monolayer 1 T′-WTe 2 has been tuned to be superconducting by electrostatic gating in
recent experiments, which has been explained by soft-mode-phonon-mediated …

Photogalvanic effect and second-harmonic generation from radio to infrared wavelengths in the monolayer

Y Liu, ZG Zhu, G Su - Physical Review B, 2024 - APS
Second-order nonlinear optical responses, including photogalvanic effect (PGE) and second
harmonic generation (SHG), are fundamental and important physical phenomena in …

Exciton spin Hall effect in arc-shaped strained

A Shubnic, V Shahnazaryan, IA Shelykh, H Rostami - Physical Review B, 2024 - APS
Generating a pure spin current using electrons, which have degrees of freedom beyond
spin, such as electric charge and valley index, presents challenges. In response, we …