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Related Experiment Video

Updated: Feb 6, 2026

Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors

Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors

Published on: January 31, 2025

Imaging the sub-moiré potential using an atomic single electron transistor.

Dahlia R Klein¹, Uri Zondiner¹, Amit Keren^1,2

¹Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot, Israel.

|February 4, 2026

Summary

This summary is machine-generated.

Researchers developed an atomic single electron transistor (SET) to image electrostatic potentials in moiré lattices. This breakthrough provides the first direct visualization of these crucial energy landscapes in engineered materials.

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Area of Science:

Condensed Matter Physics
Materials Science
Nanotechnology

Background:

Electrons in solids are governed by periodic potentials.
Moiré lattices enable engineered nanoscale potential landscapes.
Direct imaging of these potentials has been a significant challenge.

Purpose of the Study:

To introduce a novel scanning probe, the atomic single electron transistor (SET).
To achieve the first direct imaging of electrostatic potentials in moiré superlattices.
To investigate the properties of these potentials in engineered heterostructures.

Main Methods:

Development of an atomic SET using a single atomic defect in a van der Waals material.
Utilizing the quantum twisting microscope (QTM) platform for high-resolution imaging.
Scanning probe microscopy to map electrostatic potentials at the nanoscale.

Main Results:

First direct images of electrostatic potential in graphene/hexagonal boron nitride moiré superlattices obtained.
Measured potential exhibits C6 symmetry, low carrier density dependence, and ~60 mV amplitude.
Potential amplitude significantly exceeds theoretical predictions, indicating incomplete theoretical understanding.

Conclusions:

The atomic SET is a powerful tool for ultrasensitive potential sensing with 1 nm resolution.
Direct imaging reveals complex potential landscapes in moiré systems.
Findings challenge existing theories and open new avenues for exploring quantum phenomena.