Year: 2026
Type: article
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.
Source: Nano Letters
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, Klaus Ensslin
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Funders: National Science Foundation, Graphene Flagship, European Commission, Ministry of Education, Culture, Sports, Science and Technology, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Horizon 2020 Framework Programme, Japan Society for the Promotion of Science, National Center of Competence in Research Quantum Science and Technology, Core Research for Evolutional Science and Technology, H2020 European Research Council
Awards: G2442584775, G4091144171, G4162329948, G4806815962, Entropy in engineered quantum systems - Mesoscopic thermodynamics of correlated quantum states, G6177088604, G708600390, G7486974924, Quantum devices in 2D materials, G7842812455, Toward new era of quantum electrical measurements through phase slips, G898758523
OpenAlex ID: W4417534135
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