Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session M11: 2D Materials: Electronic Phenomena and Criticality
8:00 AM–9:48 AM,
Wednesday, March 6, 2024
Room: M100B
Sponsoring
Unit:
DCMP
Chair: Tobias Wolf, The University of Texas at Austin
Abstract: M11.00003 : Towards quantum pumps: Charge pumping in boron-nitride-encapsulated low-dimensional conductors using surface acoustic waves*
8:24 AM–8:36 AM
Presenter:
Dublin Nichols
(Oregon State University)
Authors:
Dublin Nichols
(Oregon State University)
Ethan D Minot
(Oregon State University)
Vikram V Deshpande
(University of Utah)
Jameson G Berg
(University of Utah)
We present results on acoustoelectric charge pumping in boron nitride-encapsulated graphene on lithium niobate. Our device uses a solid-state graphene gate, which avoids the drawbacks of ionic liquid gates, such as acoustic damping, while still allowing for strong modulation of charge carrier concentration. We demonstrate that our device produces higher-magnitude and lower-noise acoustoelectric current than previously reported devices, and we discuss plans for using this platform to achieve topologically protected charge pumping.
[1] S. Yang, C. Jiang, and S-huai Wei, “Gas Sensing in 2D Materials,” Appl. Phys. Rev. 4, 021304 (2017)
[2] Y. Fang, Y. Xu, K. Kang, B. Davaji, et al., “Quantum Oscillations in Graphene Using Surface Acoustic Wave Resonators,” Phys. Rev. Lett. 130, 246201 (2023).
[3] D. S. Novikov, “Devil’s Staircase of Incompressible Electron States in a Nanotube,” Phys. Rev. Lett. 95, 1 (2005).
*This work was supported by NSF-DMR #2004968
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700