Shock waves in nanomechanical resonators.
We study the formation of shock waves in a nanomechanical resonator with an embedded two-dimensional electron gas using surface acoustic waves. The mechanical displacement of the nanoresonator is read out via the induced acoustoelectric current. Applying acoustical standing waves, we are able to determine the so-called anomalous acoustocurrent. This current is found only in the regime of shock wave formation.
Beil
Florian W
FW
Center for NanoScience, Ludwigs-Maximilians-Universität-München, Geschwister-Scholl-Platz 1, 80539 München, Germany.
Wixforth
Achim
A
Wegscheider
Werner
W
Schuh
Dieter
D
Bichler
Max
M
Blick
Robert H
RH