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Article Dans Une Revue Physical Review Research Année : 2024

Stability of long-sustained oscillations induced by electron tunneling

Résumé

Self-oscillations are the result of an efficient mechanism generating periodic motion from a constant power source. In quantum devices, these oscillations may arise due to the interaction between single electron dynamics and mechanical motion. Due to the complexity of this mechanism, these self-oscillations may irrupt, vanish, or exhibit a bistable behavior causing hysteresis cycles. We observe these hysteresis cycles and characterize the stability of different regimes in single and double quantum dot configurations. In particular cases, we find these oscillations stable for over 20 seconds, many orders of magnitude above electronic and mechanical characteristic timescales, revealing the robustness of the mechanism at play. The experimental results are reproduced by our theoretical model that provides a complete understanding of bistability in nanoelectromechanical devices.

Dates et versions

hal-03866325 , version 1 (22-11-2022)

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Citer

Jorge Tabanera-Bravo, Florian Vigneau, Juliette Monsel, Kushagra Aggarwal, Léa Bresque, et al.. Stability of long-sustained oscillations induced by electron tunneling. Physical Review Research, 2024, 6 (1), pp.013291. ⟨10.1103/PhysRevResearch.6.013291⟩. ⟨hal-03866325⟩

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