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Effects of Landau Level Coupling on the Magnetic Band Structure for Electrons in a Two-Dimensional Hexagonal Lattice

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Abstract

The single-particle energy spectrum of two-dimensional electrons in a lateral surface superlattice of hexagonal symmetry, subject to a normal uniform magnetic field is investigated. Special attention is focused on the coupling of different Landau levels due to the periodic potential. It is shown that the inclusion of this coupling causes strong modifications of the spectrum compared with the limit of no coupling investigated previously. It is found that the importance of Landau level coupling is mainly determined by the relation between the potential amplitude and the cyclotron energy, as well as the Landau level index.

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Authors and Affiliations

  1. Institute of Physics and WIP bei der Max Planck Arbeitsgruppe “Halbleitertheorie”, Hausvogteiplatz, 10117, Berlin, Germany

    O. Kühn

  2. Department of Physics, Fordham University, Bronx, New York, 10458, USA

    V. Fessatidis

  3. Department of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, New Jersey, 07030, USA

    H. L. Cui & N. J. M. Horing

Authors
  1. O. Kühn
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  2. V. Fessatidis
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  3. H. L. Cui
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  4. N. J. M. Horing
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Kühn, O., Fessatidis, V., Cui, H.L. et al. Effects of Landau Level Coupling on the Magnetic Band Structure for Electrons in a Two-Dimensional Hexagonal Lattice. MRS Online Proceedings Library 358, 1047 (1994). https://doi.org/10.1557/PROC-358-1047

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  • DOI: https://doi.org/10.1557/PROC-358-1047

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