Abstract
AbstractThis chapter provides a general phenomenological description electrons in graphene placed on substrates with the hexagonal Bravais lattice (such as hexagonal boron nitride). In particular, we identify conditions at which the first moiré miniband is separated from the rest of the spectrum by either one or a group of three isolated secondary Dirac points, and is not obscured by dispersion surfaces coming from other minibands. In such cases, the Hall coefficient exhibits two distinct alternations of its sign as a function of charge carrier density. This phenomenological analysis is complemented by microscopic calculations.KeywordsHall CoefficientDirac PointReciprocal Lattice VectorDispersion SurfacePerturbation Theory AnalysisThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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