1.
Phys Rev Lett
; 108(22): 226601, 2012 Jun 01.
Article
in English
| MEDLINE
| ID: mdl-23003634
ABSTRACT
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.