Acoustoelectric effect at a Josephson SNS junction
Volodin A. P., Logvenov G. Yu., Ryazanov V. V. , Fal'kovskii I. V.
A nonlinear acoustoelectric effect has been observed at a Ta-Cu-Ta SNS Josephson junction as a low-frequency traveling acoustic wave passes through it. A periodic amplitude modulation of the acoustic wave gives rise to constant-voltage steps on the current-voltage characteristic of the junction.