Acoustoelectric drag effect in the two-dimensional electron gas at strong magnetic field

Falko, Vladimir and MESHKOV, S V and IORDANSKII, S V (1993) Acoustoelectric drag effect in the two-dimensional electron gas at strong magnetic field. Physical review B, 47 (15). pp. 9910-9912. ISSN 0163-1829

Abstract

We propose a phenomenological theory of the acoustoelectric drag effect. The electric current dragged by the surface acoustic wave is shown.to possess the unusual shape of the Shubnikov-de Haas oscillations. Namely, the drag-current component along the wave propagation direction has an oscillating sign and passes through zero near both sigma(xx) minima and maxima, whereas the perpendicular (i.e., Hall) component oscillates similarly to the diagonal conductivity.