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arXiv · 2203.01858

Bloch oscillations in the magnetoconductance of twisted bilayer graphene

T. Vakhtel·D. O. Oriekhov·C. W. J. Beenakker
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Abstract

We identify a mapping between two-dimensional (2D) electron transport in a minimally twisted graphene bilayer and a 1D quantum walk, where one spatial dimension plays the role of time. In this mapping a magnetic field B perpendicular to the bilayer maps onto an electric field. Bloch oscillations due to the periodic motion in a 1D Bloch band can then be observed in purely DC transport as magnetoconductance oscillations with periodicity set by the Bloch frequency.

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T. Vakhtel, D. O. Oriekhov, C. W. J. Beenakker. 2022-03-03. Bloch oscillations in the magnetoconductance of twisted bilayer graphene. https://doi.org/10.1103/physrevb.105.l241408

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