We calculate the spin-Hall conductivity for a two-dimensional electron gas within the self-consistent Born approximation, varying the strength and type of disorder. In the weak disorder limit we find both analytically and numerically a vanishing spin-Hall conductivity even when we allow a momentum dependent scattering. Separating the reactive from the dissipative current response, we find the universal value σsHR=e∕8π for the reactive response, which cancels however with the dissipative part σsHD=−e∕8π.

Raimondi, R., Schwab, P. (2005). Spin-Hall effect in a disordered 2D electron system. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 71, 033311-033314 [10.1103/PhysRevB.71.033311].

Spin-Hall effect in a disordered 2D electron system

RAIMONDI, Roberto;
2005-01-01

Abstract

We calculate the spin-Hall conductivity for a two-dimensional electron gas within the self-consistent Born approximation, varying the strength and type of disorder. In the weak disorder limit we find both analytically and numerically a vanishing spin-Hall conductivity even when we allow a momentum dependent scattering. Separating the reactive from the dissipative current response, we find the universal value σsHR=e∕8π for the reactive response, which cancels however with the dissipative part σsHD=−e∕8π.
2005
Raimondi, R., Schwab, P. (2005). Spin-Hall effect in a disordered 2D electron system. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 71, 033311-033314 [10.1103/PhysRevB.71.033311].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/146240
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