Sources of nonlinearity of a driven carbon nanotube electromechanical resonator
Artikel i vetenskaplig tidskrift, 2026
Nanoelectromechanical resonators provide an ideal platform for investigating the interplay between electron transport and nonlinear mechanical motion. Externally driven suspended carbon nanotubes, containing an electrostatically defined quantum dot, are especially promising. These devices possess two main sources of nonlinearity: the electromechanical coupling and the intrinsic contributions of the resonator that induce a Duffing-like nonlinear behavior. In this work, we observe the interplay between the two sources across different driving regimes. The main nonlinear feature we observe is the emergence of archlike resonances in the electronic transport when the resonator is strongly driven. We show that our model is in good agreement with our experimental electron transport measurements on a suspended carbon nanotube. This characterization paves the way for the exploration of nonlinear phenomena using mesoscopic electromechanical resonators.
Författare
Sofia Sevitz
Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik
Kushagra Aggarwal
University of Oxford
Jorge Tabanera-Bravo
Universidad Complutense de Madrid
Max-Planck-Gesellschaft
Juliette Monsel
Chalmers, Mikroteknologi och nanovetenskap, Tillämpad kvantfysik
Florian Vigneau
University of Oxford
Federico Fedele
University of Oxford
Joe Dunlop
University of Exeter
Juan M. R. Parrondo
Universidad Complutense de Madrid
Gerard J. Milburn
University of Queensland
Janet Anders
University of Exeter
Universität Potsdam
Natalia Ares
University of Oxford
Federico Cerisola
University of Exeter
PHYSICAL REVIEW RESEARCH
2643-1564 (eISSN)
Vol. 8 3 033237ASPECTS Quantum Thermodynamics of Precision in Electronic Devices
Europeiska kommissionen (EU) (101080167), 2022-11-01 -- 2025-10-31.
TeraHertz kvantsensorer baserade på kvantprickar av två-lagers grafen placerade i resonatorer
Vetenskapsrådet (VR) (2023-06205), 2024-01-01 -- 2026-12-31.
Ämneskategorier (SSIF 2025)
Den kondenserade materiens fysik
DOI
10.1103/t59c-rdnm
Relaterade dataset
Code [dataset]
DOI: 10.5281/zenodo.20747566.