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Characterization of Anisotropic Leaky Mode Modulators for Holovideo

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Published on: March 19, 2016

Dynamic Carrier Modulation via Nonlinear Acoustoelectric Transport in van der Waals Heterostructures.

Timothy J McSorley¹, Kaustubh Simha¹, James E Corcoran¹

¹Department of Physics and Astronomy, University of California, Irvine, California 92697, United States.

|September 13, 2025

Summary

Surface acoustic waves (SAWs) dynamically control carriers in graphene, creating periodic stripes. This breakthrough enables tunable quantum simulators using acoustic lattices for solid-state quantum simulations.

Keywords:

2D materials carrier stripes nonlinear acoustoelectric transport solid-state quantum simulators

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Area of Science:

Condensed Matter Physics
Quantum Simulation
Materials Science

Background:

Van der Waals heterostructures offer tunable lattice parameters for quantum simulators.
Trapping excitations requires deep potential wells, a challenge in solid-state systems.

Purpose of the Study:

To investigate dynamic carrier modulation in graphene using surface acoustic waves (SAWs).
To explore the potential of SAWs for creating controllable potential landscapes in 2D materials for quantum simulation.

Main Methods:

Fabrication of boron nitride-encapsulated graphene devices on LiNbO3 substrates.
Application of intense surface acoustic waves (SAWs) to induce acoustoelectric transport.
Utilizing counter-propagating SAWs to generate standing SAWs (SSAWs) for dynamic carrier manipulation.

Main Results:

Observation of nonlinear acoustoelectric transport and dynamic carrier modulation.
Emergence of periodic carrier stripes in the nonlinear SAW regime.
Confirmation of strong carrier localization through JAE saturation and tunable resistance peaks.

Conclusions:

SAWs are a powerful tool for controlling carrier dynamics in 2D materials.
This technique facilitates the development of time-dependent quantum systems and acoustic lattices.
The findings pave the way for novel solid-state quantum simulators.