2011/07/31 by Guillaume Weick, D M-A Meyer, Dominique M. -A. Meyer
Chemistry · Engineering · Mathematics · Physics and Astronomy · #Biasing #Blockade #Buckling #Capacitive sensing #Chemistry #Classical mechanics #Condensed matter physics #Coulomb blockade #Coupling (piping) #Current (fluid) #Electrical engineering #Engineering #Euler's formula #Force Microscopy Techniques and Applications #Instability #Materials science #Mathematical analysis #Mathematics #Mechanical and Optical Resonators #Mechanics #Physics #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Thermodynamics #Transistor #Voltage #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.84.125454
published as Phys. Rev. B 84, 125454 (2011) · 11 pages, 7 figures; published version
arxiv created 2011/09/30 · openalex publication_date 2011/09/30 · arxiv updated 2011/10/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Single-electron transistors embedded in a vibrating nanoresonator such as a doubly clamped carbon nanotube exhibit effects stemming from the coupling between electronic and vibrational degrees of freedom. In particular, a capacitive electromechanical coupling induces a blockade of the current at low bias voltage. It has been recently shown theoretically within a sequential-tunneling approximation that this current blockade can be enhanced by orders of magnitude when the suspended structure is brought to the Euler buckling instability. Here, we investigate the role of cotunneling on the predicted enhancement and show that the latter is not suppressed by cotunneling effects. We further demonstrate that despite the fact that the current blockade is difficult to measure far from the Euler instability, the backaction of the current flow on the nanobeam frequency may be easier to observe.