Theoretical study demonstrates voltage-controlled switching of edge-state currents across coupled topological insulator nanoribbons, indicating potential for low-power quantum electronic switches.
This paper studies the edge state current through two-dimensional topological insulator nanoribbons weakly coupled at their interfaces. The authors demonstrate that it is possible to create current-on and current-off states by changing chemical potentials of the leads or by applying a gate voltage in the central island region.
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Ishida et al. (2020) studied this question.
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