Spin-Hall effect in a disordered 2D electron-system
Raimondi, Roberto · Schwab, Peter
Original · EN
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 disspative current response, we find the universal value σʳsH = e/8 π for the reactive response, which cancels however with the dissipative part σᵈsH = -e/8 π.
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