Email this article Helical edge transport in the presence of a magnetic impurity
- Authors: Kurilovich P.D.1,2,3, Kurilovich V.D.1,2,3, Burmistrov I.S.1,3,4,5, Goldstein M.6
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Affiliations:
- Moscow Institute of Physics and Technology (State University)
- Skolkovo Institute of Science and Technology
- Landau Institute for Theoretical Physics
- Institut für Theorie der kondensierten Materie
- Institut für Nanotechnologie
- Raymond and Beverly Sackler School of Physics and Astronomy
- Issue: Vol 106, No 9 (2017)
- Pages: 593-599
- Section: Condensed Matter
- URL: https://journals.rcsi.science/0021-3640/article/view/160527
- DOI: https://doi.org/10.1134/S0021364017210020
- ID: 160527
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Abstract
We consider the effects of electron scattering off a quantum magnetic impurity on the current–voltage characteristics of the helical edge of a two-dimensional topological insulator. We compute the backscattering contribution to the current along the edge for a general form of the exchange interaction matrix and arbitrary value of the magnetic impurity spin. We find that the differential conductance may exhibit a nonmonotonic dependence on the voltage with several extrema.
About the authors
P. D. Kurilovich
Moscow Institute of Physics and Technology (State University); Skolkovo Institute of Science and Technology; Landau Institute for Theoretical Physics
Email: burmi@itp.ac.ru
Russian Federation, Dolgoprudnyi, Moscow region, 141701; Moscow, 143026; Moscow, 119334
V. D. Kurilovich
Moscow Institute of Physics and Technology (State University); Skolkovo Institute of Science and Technology; Landau Institute for Theoretical Physics
Email: burmi@itp.ac.ru
Russian Federation, Dolgoprudnyi, Moscow region, 141701; Moscow, 143026; Moscow, 119334
I. S. Burmistrov
Moscow Institute of Physics and Technology (State University); Landau Institute for Theoretical Physics; Institut für Theorie der kondensierten Materie; Institut für Nanotechnologie
Author for correspondence.
Email: burmi@itp.ac.ru
Russian Federation, Dolgoprudnyi, Moscow region, 141701; Moscow, 119334; Karlsruhe, 76128; Karlsruhe, 76021
M. Goldstein
Raymond and Beverly Sackler School of Physics and Astronomy
Email: burmi@itp.ac.ru
Israel, Tel Aviv, 6997801
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