Bulletin of the American Physical Society
2024 APS March Meeting
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session F11: Local Characterization of Moirés in Transition Metal Dichalcogenides
8:00 AM–10:12 AM,
Tuesday, March 5, 2024
Room: M100B
Sponsoring
Unit:
DCMP
Chair: Brian LeRoy, University of Arizona
Abstract: F11.00003 : High-resolution potential imaging using the Atomic SET - Part I*
8:24 AM–8:36 AM
Presenter:
Uri Zondiner
(Weizmann Institute of Science)
Authors:
Uri Zondiner
(Weizmann Institute of Science)
Dahlia R Klein
(Weizmann Institute of Science)
John Birkbeck
(Weizmann Institute of Science)
Alon Inbar
(Weizmann Institute of Science)
Jiewen Xiao
(Weizmann institute of Science)
Takashi Taniguchi
(NIMS)
Kenji Watanabe
(National Institute for Materials Science)
Shahal Ilani
(Weizmann Institute of Science)
Visualizing electronic states on local scales is becoming an essential tool to understand new quantum states of matter. One central property that can be visualized is electrostatic potential. Its measurement enables local imaging of a variety of key thermodynamic quantities including electronic compressibility, magnetization, and entropy. To date, the best scanning detector of electrostatic potential is the scanning single electron transistor (SET). Its ability to measure on microscopic scales has allowed it to evade disorder prevalent in many quantum materials and unearth exciting new phenomena. However, existing scanning SETs have a critical limitation – with a spatial resolution of ~100 nm, they cannot access the growing list of charge-ordered quantum states that appear on ~10 nm scales, e.g. in moiré lattices. Here, we will showcase a novel scanning probe that improves SET spatial resolution by two orders of magnitude, down to 1 nm. Based on the quantum twisting microscope (QTM), it uses a single atomic defect embedded in a pristine van der Waals interface as the smallest scanning detector of electrostatic potentials. In Part I, I will present the operating principle of this novel probe and how its different modalities expand our toolset for understanding quantum materials.
*ERC adV (101097125). The Helen and Martin Kimmel award. DFG CRC 183
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