Surface acoustic wave induced phenomena in two-dimensional materials

Abstract

Surface acoustic waves (SAWs)-matter interaction provides a fascinating doorknob for inducing and manipulating novel phenomena and functionalities in two-dimensional (2D) materials. The dynamic strain field and piezo-electric field associated with...

Acoustically driven magnon-phonon coupling in a layered antiferromagnet

“…where S /S on the right-hand-side is taken to be the self-consistent (numerical) solution of Eq. (7). We note that the other choice S = 3/2 gives a similar temperature dependence, and the difference is irrelevant considering the qualitative nature of our analysis.…”

“…Beyond the magnetic film, the transmitted SAWs can be measured, providing information on the magnet's response to external stimuli [3,5]. Aside from the energy efficient generation, inherently low attenuation, suitability for miniaturization and long distance propagation of SAWs [3,6,7], a particular advantage of this technique is that it does not discriminate between ferromagnetic and antiferromagnetic order, and indeed may even be stronger for the latter [8].…”

“…SAW technology is relatively mature, having found multiple applications in the microelectronics industry, yet continues to play a key role at the forefront of fundamental research, with recent notable advances including SAW-driven transport of single electrons in gallium ar-senide [9], semiconductor interlayer excitons in van der Waals heterobilayers [10], and manipulation of the charge density wave in layered superconductors [11], amongst other advances [7]. Utilizing SAWs as a probe of ferromagnetism has proven highly effective, for instance in understanding the fundamentals of magnetoelasticity and magnetostriction, or more recently in revealing the various mechanisms of SAW nonreciprocity [3,5,[12][13][14][15][16][17].…”

Significant Suppression of Dark Current in a Surface Acoustic Wave Assisted MoS2 Photodetector

“…These unique properties enable external stimuli (electric field or SAW) to modulate their inherent optical, electrical, and opto-electronic properties. [32][33][34][35][36][37][38] The integration of SAW with 2D materials has emerged as a compelling area of scientific research. This burgeoning field has attracted extensive investigations aimed at comprehending the fundamental interactions between SAW and 2D materials, as well as exploring their combined properties and potential applications.…”

“…This burgeoning field has attracted extensive investigations aimed at comprehending the fundamental interactions between SAW and 2D materials, as well as exploring their combined properties and potential applications. [23,26,32,36,[38][39][40][41][42] In this work, the photoconductive device based on multilayer MoS 2 is fabricated on a surface acoustic wave delay line on a LiTaO 3 substrate. The objective is to enhance the photoelectric detection performance of the devices by leveraging the unique properties of SAW and 2D materials.…”