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Scattering of Electrons between Edge and Two-Dimensional States of a Two-Dimensional Topological Insulator and the Conductivity of the Topological Insulator Strip in a Metallic State

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Abstract

The lifetime of electrons on edge states of a two-dimensional topological insulator against the background of an allowed two-dimensional band has been determined. It has been shown that this time in the case of scattering on Coulomb impurities can be significantly larger than the mean free time of two-dimensional electrons. As a result, the conductivity of the metallic two-dimensional topological insulator strip can be determined primarily by edge states.

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References

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Authors and Affiliations

  1. Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    M. M. Mahmoodian & M. V. Entin

  2. Novosibirsk State University, Novosibirsk, 630090, Russia

    M. M. Mahmoodian & M. V. Entin

Authors
  1. M. M. Mahmoodian
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  2. M. V. Entin
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Corresponding authors

Correspondence to M. M. Mahmoodian or M. V. Entin.

Additional information

Russian Text © The Author(s), 2019, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2019, Vol. 109, No. 5, pp. 337–339.

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Mahmoodian, M.M., Entin, M.V. Scattering of Electrons between Edge and Two-Dimensional States of a Two-Dimensional Topological Insulator and the Conductivity of the Topological Insulator Strip in a Metallic State. Jetp Lett. 109, 331–333 (2019). https://doi.org/10.1134/S0021364019050102

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  • DOI: https://doi.org/10.1134/S0021364019050102

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