Generating and controlling spin-polarized currents induced by a quantum spin Hall antidot

We study an electrically controlled quantum spin Hall antidot embedded in a two-dimensional topological insulating bar. Helical edge states around the antidot and along the edges of the bar are tunnel coupled. The close connection between spin and chirality, typical of helical systems, allows to gen...

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Veröffentlicht in:	Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2013-02, Vol.87 (8), Article 085425
Hauptverfasser:	Dolcetto, G., Cavaliere, F., Ferraro, D., Sassetti, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antidots Asymmetry Condensed matter Electric potential Helical Switching Two dimensional Voltage
Online-Zugang:	Volltext
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