# High‐Frequency Nonlinear Transport and Photogalvanic Effects in 2D Topological Insulators

@article{Durnev2019HighFrequencyNT, title={High‐Frequency Nonlinear Transport and Photogalvanic Effects in 2D Topological Insulators}, author={M V Durnev and Sergey A. Tarasenko}, journal={Annalen der Physik}, year={2019}, volume={531} }

Excitation of a topological insulator by a high‐frequency electric field of a laser radiation leads to a dc electric current in the helical edge channel whose direction and magnitude are sensitive to the radiation polarization and depend on the physical properties of the edge. An overview of theoretical and experimental studies of such edge photoelectric effects in 2D topological insulators based on semiconductor quantum wells is presented. First, a phenomenological description is given of edge…

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