{ "id": "cond-mat/0409038", "version": "v3", "published": "2004-09-01T23:35:48.000Z", "updated": "2005-01-08T01:54:44.000Z", "title": "Spin-Hall Effect in Two-Dimensional Electron Systems with Rashba Spin-Orbit Coupling and Disorder", "authors": [ "L. Sheng", "D. N. Sheng", "C. S. Ting" ], "comment": "5 pages, 4 figures", "journal": "Phys. Rev. Lett. 94, 016602 (2005)", "doi": "10.1103/PhysRevLett.94.016602", "categories": [ "cond-mat.mes-hall" ], "abstract": "Using the four-terminal Landauer-B\\\"{u}ttiker formula and Green's function approach, we calculate numerically the spin-Hall conductance in a two-dimensional junction system with the Rashba spin-orbit (SO) coupling and disorder. We find that the spin-Hall conductance can be much greater or smaller than the universal value $e/8\\pi$, depending on the magnitude of the SO coupling, the electron Fermi energy and the disorder strength. The spin-Hall conductance does not vanish with increasing sample size for a wide range of disorder strength. Our numerical calculation reveals that a nonzero SO coupling can induce electron delocalization for disorder strength smaller than a critical value, and the nonvanishing spin-Hall effect appears mainly in the metallic regime.", "revisions": [ { "version": "v3", "updated": "2005-01-08T01:54:44.000Z" } ], "analyses": { "keywords": [ "two-dimensional electron systems", "rashba spin-orbit coupling", "spin-hall conductance", "two-dimensional junction system", "nonvanishing spin-hall effect appears" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }