Quantization of the acoustoelectric current in a two-dimensional electron system in a strong magnetic field

摘要: An expression for the off-diagonal component of acoustoelectric tensor is obtained from momentum-conservation law. The current along direction sound propagation exhibits plateaus as a function gate voltage if circuit in perpendicular open. product jB has same magnetic field. values at are equidistant and separated by deep minima. ratio plateau to open-circuit equal ${\mathrm{\ensuremath{\sigma}}}_{\mathit{x}\mathit{y}}$. This effect can be used measuring intensity surface acoustic wave propagated through heterojunction.