Email this article Edge absorption and circular photogalvanic effect in 2D topological insulator edges
- Authors: Entin M.V.1,2, Magarill L.I.1,2
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Affiliations:
- Rzhanov Institute of Semiconductor Physics, Siberian Branch
- Novosibirsk State University
- Issue: Vol 103, No 11 (2016)
- Pages: 711-716
- Section: Condensed Matter
- URL: https://journals.rcsi.science/0021-3640/article/view/159428
- DOI: https://doi.org/10.1134/S0021364016110047
- ID: 159428
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Abstract
The electron absorption on the edge states and the edge photocurrent of a 2D topological insulator (TI) are studied. We consider the optical transitions within linear edge branches of the energy spectrum. The interaction with impurities is taken into account. The circular polarization is found to produce the edge photocurrent, the direction of which is determined by light polarization and edge orientation.
About the authors
M. V. Entin
Rzhanov Institute of Semiconductor Physics, Siberian Branch; Novosibirsk State University
Author for correspondence.
Email: entin@isp.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
L. I. Magarill
Rzhanov Institute of Semiconductor Physics, Siberian Branch; Novosibirsk State University
Email: entin@isp.nsc.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
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