Spin and charge transport on the surface of a topological insulator

We derive diffusion equations, which describe spin-charge coupled transport on the helical metal surface of a three-dimensional topological insulator. The main feature of these equations is a large magnitude of the spin-charge coupling, which leads to interesting and observable effects. In particula...

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Veröffentlicht in:	Physical review letters 2010-08, Vol.105 (6), p.066802-066802, Article 066802
Hauptverfasser:	Burkov, A A, Hawthorn, D G
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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