Quantum spin Hall effect in 2D topological insulators

E. B. Sonin

doi:10.1117/12.892272

6 September 2011 Quantum spin Hall effect in 2D topological insulators

E. B. Sonin

Proceedings Volume 8100, Spintronics IV; 810003 (2011) https://doi.org/10.1117/12.892272
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

The original motivation of great interest to topological insulators was the hope to observe the quantum spin Hall effect. Therefore if a material is in the topological insulator state they frequently call it the quantum spin Hall state. However, despite impressive experimental results confirming the existence of the quantum spin Hall state, the quantum spin Hall effect has not yet been detected. After a short overview of what was originally suggested as the quantum spin Hall effect (quantum spin conductance determined by the topological Chern number) the paper analyzes the crucial role of the boundary condition on the observation of the effect and finally discusses whether and how the quantum spin Hall effect could be observed.

Citation Download Citation

E. B. Sonin "Quantum spin Hall effect in 2D topological insulators", Proc. SPIE 8100, Spintronics IV, 810003 (6 September 2011); https://doi.org/10.1117/12.892272

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