Time-Resolved Charge Detection in Transition Metal Dichalcogenide Quantum Dots

Nano Letters 2026 Open access

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Authors: Markus Niese, Michele Masseroni, Clara Scherm, Christoph Adam, Max J. Ruckriegel, Artem O. Denisov, Jonas D. Gerber, Lara Ostertag, Jessica Richter, Kenji Watanabe, Takashi Taniguchi, Thomas Ihn
+1 more Klaus Ensslin
DOI: 10.1021/acs.nanolett.5c06351
Cited by: 0
References: 24

Abstract

High Resolution Image Download MS PowerPoint Slide We investigate electronic transport through gate-defined quantum dots in molybdenum disulfide (MoS 2 ) using an integrated charge detector. We observe a crossover from two weakly coupled single dots to a strongly coupled double quantum dot. In the regime of extremely weak dot-lead coupling, where the direct transport current is below the detection limit, we measure the dot occupation via charge detection and access the few-electron regime. Due to the large band gap of MoS 2, tunneling rates can be sufficiently suppressed to resolve individual tunneling events. These results establish a platform for single-shot spin- and valley-to-charge conversion and highlight the potential of transition-metal dichalcogenide quantum dots for quantum information applications.

Fields of Study & Subjects

2D Materials and Applications Topological Materials and Phenomena Quantum and electron transport phenomena

Publication details

Journal / source
Nano Letters
Publisher
American Chemical Society (ACS)
Volume
26
Issue
16
Pages
5390–5395
Publication date
15 April 2026
Language
EN