Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/85821
Title: Topological edge-state engineering with high-frequency electromagnetic radiation
Authors: Hasan, Mehedi
Yudin, Dmitry
Iorsh, Ivan
Eriksson, Olle
Shelykh, Ivan
Keywords: Electromagnetic Radiation
Edge States
Issue Date: 2017
Source: Hasan, M., Yudin, D., Iorsh, I., Eriksson, O., & Shelykh, I. (2017). Topological edge-state engineering with high-frequency electromagnetic radiation. Physical Review B, 96(20), 205127-.
Series/Report no.: Physical Review B
Abstract: We outline here how strong light-matter interaction can be used to induce quantum phase transition between normal and topological phases in two-dimensional topological insulators. We consider the case of a HgTe quantum well, in which band inversion occurs above a critical value of the well thickness, and demonstrate that coupling between electron states and the E field from an off-resonant linearly polarized laser provides a powerful tool to control topological transitions, even for a thickness of the quantum well that is below the critical value. We also show that topological phase properties of the edge states, including their group velocity, can be tuned in a controllable way by changing the intensity of the laser field. These findings open up the possibility for new experimental means with which to investigate topological insulators and shed new light on topological-insulator-based technologies that are under active discussion.
URI: https://hdl.handle.net/10356/85821
http://hdl.handle.net/10220/45305
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.96.205127
Schools: School of Physical and Mathematical Sciences 
Rights: © 2017 American Physical Society (APS). This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: [http://dx.doi.org/10.1103/PhysRevB.96.205127]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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