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Spin-Current-Induced Charge Accumulation and Electric Current in Semiconductor Nanostructures with Structural Inversion Asymmetry | | Jian Li
; Shun-Qing Shen
; | | Date: |
15 Jan 2007 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | | Abstract: | We demonstrate that the flow of a longitudinal spin current with different spin polarization will induce different patterns of charge accumulation in a two-terminal stripe, or electric current distribution in a four-terminal Hall-bar structure, of two-dimensional electron gas with Rashba spin-orbit coupling. For an in-plane polarized spin current, charges will accumulate either by the two lateral edges or around the center of the stripe structure while, for an out-of-plain polarized spin current, charge densities will show opposite signs by the two lateral edges leading to a Hall voltage. Our calculation offers a new route to experimentally detect or differentiate pure spin currents with various spin polarization. | | Source: | arXiv, cond-mat/0701344 | | Services: | Forum | Review | PDF | Favorites | |
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