Theory of valley-dependent drag currents from surface acoustic waves in 2D materials on piezoelectric substrates, including warping and Berry phase contributions that produce orthogonal current components.
Kittel, Quantum theory of solid states (Wiley, 2004)
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Valley Acoustoelectric Effect
Theory of valley-dependent drag currents from surface acoustic waves in 2D materials on piezoelectric substrates, including warping and Berry phase contributions that produce orthogonal current components.