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Numerical study of the spin-Hall conductance in the Luttinger model
W Q Chen1, Z Y Weng, D N Sheng
1Center for Advanced Study, Tsinghua University, Beijing 100084, China.
Abstract:
We present the first numerical studies of the disorder effect on the recently proposed intrinsic spin-Hall conductance in a three dimensional lattice Luttinger model. The results show that the spin-Hall conductance remains finite in a wide range of disorder strength, with large fluctuations. The disorder-configuration-averaged spin-Hall conductance monotonically decreases with the increase of disorder strength and vanishes before the Anderson localization takes place. The finite-size effect is also discussed.
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