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Stability of long-sustained oscillations induced by electron tunneling

Abstract:
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. We show that, 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 both single- and double-quantum-dot configurations. In particular cases, we find these oscillations stable for over 20 s, many orders of magnitude above electronic and mechanical characteristic timescales, revealing the robustness of the mechanism at play.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/physrevresearch.6.013291

Authors

More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
ORCID:
0000-0001-9985-9293


Publisher:
American Physical Society
Journal:
Physical Review Research More from this journal
Volume:
6
Issue:
1
Article number:
013291
Publication date:
2024-03-18
Acceptance date:
2024-02-12
DOI:
EISSN:
2643-1564


Language:
English
Pubs id:
1914402
Local pid:
pubs:1914402
Deposit date:
2024-04-18
ARK identifier:

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