Abstract
The acoustoelectric effect is studied in normal and mixed superconducting states of an anisotropic metal. We find that if the superconducting gap is anisotropic and the Fermi surface contains both electron-like and holelike parts, then the acoustoelectric voltage can sharply change sign when transited from the normal to superconducting state. The affect of superconducting fluctuations on the acoustoelectric current is also investigated.
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