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  • Letter

Bloch oscillations in the magnetoconductance of twisted bilayer graphene

T. Vakhtel, D. O. Oriekhov, and C. W. J. Beenakker

  • Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands

Phys. Rev. B 105, L241408 – Published 22 June, 2022

DOI: https://doi.org/10.1103/PhysRevB.105.L241408

Abstract

We identify a mapping between two-dimensional (2D) electron transport in a minimally twisted graphene bilayer and a one-dimensional (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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