Abstract
Suspended carbon nanotubes are known to support self-driven oscillations due to electromechanical feedback under certain conditions, including low temperatures and high mechanical quality factors. Prior reports identified signatures of such oscillations in Kondo or high-bias transport regimes. Here, we observe self-driven oscillations that give rise to significant conduction in normally Coulomb blockaded low-bias transport. Using a master equation model, the self-driving is shown to result from strongly energy-dependent electron tunneling, and the dependencies of transport features on bias, gate voltage, and temperature are well reproduced.
© Willick, K., & Baugh, J. (2020). Self-driven oscillation in Coulomb blockaded suspended carbon nanotubes. Physical Review Research, 2(3). https://doi.org/10.1103/physrevresearch.2.033040