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arXiv · 0901.4017

Temperature independent current deficit due to induced quantum nanowire vibrations

Gustav Sonne
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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.

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Gustav Sonne. 2010-11-05. Temperature independent current deficit due to induced quantum nanowire vibrations. https://doi.org/10.1088/1367-2630%2F11%2F7%2F073037

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