Subterahertz acoustical pumping of electronic charge in a resonant tunneling device.

@article{Young2012SubterahertzAP,
  title={Subterahertz acoustical pumping of electronic charge in a resonant tunneling device.},
  author={Erica Slate Young and Andrey V. Akimov and Mohamed Henini and L. Eaves and A. J. Kent},
  journal={Physical review letters},
  year={2012},
  volume={108 22},
  pages={226601}
}
We demonstrate that controlled subnanosecond bursts of electronic charge can be transferred through a resonant tunneling diode by successive picosecond acoustic pulses. The effect exploits the nonlinear current-voltage characteristics of the device and its asymmetric response to the compressive and tensile components of the strain pulse. This acoustoelectronic pump opens new possibilities for the control of quantum phenomena in nanostructures.