A periodic gate voltage on a GaAs 2DEG can flatten electron bands into pseudo-Landau levels, with an asymmetric pattern producing nonzero Berry curvature.
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Designing Flat Bands and Pseudo-Landau Levels in GaAs with Patterned Gates
A periodic gate voltage on a GaAs 2DEG can flatten electron bands into pseudo-Landau levels, with an asymmetric pattern producing nonzero Berry curvature.