Helical edge transport in the presence of a magnetic impurity
| Autor: | Kurilovich, P. D., Kurilovich, V. D., Burmistrov, I. S., Goldstein, M. |
|---|---|
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | JETP Letters 106, 593 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1134/S0021364017210020 |
| Popis: | 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 is a non-monotonous function of the voltage with several extrema. Comment: 7 pages, 1 figure, to appear in JETP Letters |
| Databáze: | arXiv |
| Externí odkaz: |
|