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Spin-Hall effect in a disordered two-dimensional electron system

2004/08/11 by Roberto Raimondi, Peter Schwab · 2 citations
Physics and Astronomy · #Magnetic properties of thin films #Quantum and electron transport phenomena #Topological Materials and Phenomena #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.71.033311

published as Phys. Rev. B 71, 033311 (2005) · 4 pages

arxiv created 2004/08/11 · openalex publication_date 2005/01/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

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 \ensuremathσsHR=e∕8\ensuremathπ for the reactive response, which cancels however with the dissipative part \ensuremathσsHD=\ensuremath-e∕8\ensuremathπ.

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