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Orbital momentum Hall effect in p-doped graphane

AuthorsTokatly, I. V.
Issue Date2010
PublisherAmerican Physical Society
CitationPhysical Review B 82(16): 161404(R) (2010)
AbstractIt is shown that an electric field applied to p-doped graphane generates a dissipationless orbital momentum Hall current. In the clean limit the corresponding Hall conductivity is independent of the concentration of holes. The Hall effect is related to the 2π-Berry phase accumulated when heavy and light holes are transported around the degeneracy point in the center of the Brillouin zone. This also leads to the orbital momentum edge currents in the equilibrium state and to the accumulation of the orbital momentum at the edges when the system is driven out of equilibrium.
Description4 páginas, 2 figuras.-- PACS number(s): 72.80.Vp, 72.25.Dc
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.82.161404
Appears in Collections:(CFM) Artículos
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