Temperature independent current deficit due to induced quantum nanowire vibrations

Abstract

We consider electronic transport through a suspended voltage-biased nanowire. By coupling the tunneling current to a transverse magnetic field, vibrational modes of the wire are excited which influences the current-voltage characteristics of the system in novel ways through the induced electron-vibron interaction. From this analysis, we find that at high voltages the current through the suspended nanowire is offset from its non-vibrating ohmic value by an amount that is independent of both bias voltage and temperature. We also show that the corrections to the current from the back-action of the vibrating wire decay exponentially in the limit of high voltage, a result that holds even if the nanowire vibrational modes have been driven out of thermal equilibrium.

4 pages, 3 figures

References in corpus (10)

• A tunable carbon nanotube electromechanical oscillator
• An Atomic-resolution nanomechanical mass sensor
• Cooling a nanomechanical resonator with quantum back-action
• Franck-Condon blockade and giant Fano factors in transport through single molecules
• Electrical generation and absorption of phonons in carbon nanotubes
• Vibrational sidebands and dissipative tunneling in molecular transistors
• Electronic Aharonov-Bohm Effect Induced by Quantum Vibrations
• Giving electrons a ride: nanomechanical electron shuttles
• Self-organization of irregular NEM vibrations in multi-mode shuttle structures
• High-temperature excess current and quantum suppression of electronic backscattering in a 1-D system

Cited by in corpus (4)

• Non-Equilibrium and Quantum Coherent Phenomena in the Electromechanics of Suspended Nanowires
• Magnetopolaronic effects in electron transport through a single-level vibrating quantum dot
• Interplay of magneto-elastic and polaronic effects in electronic transport through suspended carbon-nanotube quantum dots
• Dynamical electron transport through a nanoelectromechanical wire in a magnetic field