Anomalous resistoacoustic effect in a piezoelectric-conducting liquid structure

The presence of the anomalous resistoacoustic effect in the case of the propagation of a Bleustein-Gulyaev wave in a piezoelectric-conducting liquid structure is theoretically predicted. As the conductivity of the liquid increases, the wave velocity increases, reaches its maximum, and then decreases. The value of the positive variation of the wave velocity increases with decreasing dielectric constant of the liquid ɛlq and can reach 6% for potassium niobate at ɛlq=2.5. It is shown that there exists a critical value of the wave localization depth above which the anomalous resistoacoustic effect in such a structure is absent.