{ "id": "cond-mat/0506189", "version": "v1", "published": "2005-06-07T21:20:05.000Z", "updated": "2005-06-07T21:20:05.000Z", "title": "Dependence of the intrinsic spin Hall effect on spin-orbit interaction character", "authors": [ "K. Nomura", "Jairo Sinova", "N. A. Sinitsyn", "A. H. MacDonald" ], "comment": "10 pages, 4 figures", "journal": "Phys. Rev. B 72, 165316 (2005)", "doi": "10.1103/PhysRevB.72.165316", "categories": [ "cond-mat.mes-hall" ], "abstract": "We report on a comparative numerical study of the spin Hall conductivity in two-dimensions for three different spin-orbit interaction models; the standard k-linear Rashba model, the k-cubic Rashba model that describes two-dimensional hole systems, and a modified k-linear Rashba model in which the spin-orbit coupling strength is energy dependent. Numerical finite-size Kubo formula results indicate that the spin Hall conductivity of the k-linear Rashba model vanishes for frequency $\\omega$ much smaller than the scattering rate $\\tau^{-1}$, with order one relative fluctuations surviving out to large system sizes. For the k-cubic Rashba model case, the spin Hall conductivity does not depend noticeably on $\\omega \\tau$ and is finite in the {\\em dc} limit, in agreement with experiment. For the modified k-linear Rashba model the spin Hall conductivity is noticeably $\\omega \\tau$ dependent but approaches a finite value in the {\\em dc} limit. We discuss these results in the light of a spectral decomposition of the spin Hall conductivity and associated sum rules, and in relation to a proposed separation of the spin Hall conductivity into skew-scattering, intrinsic, and interband vertex correction contributions.", "revisions": [ { "version": "v1", "updated": "2005-06-07T21:20:05.000Z" } ], "analyses": { "keywords": [ "spin hall conductivity", "intrinsic spin hall effect", "spin-orbit interaction character", "finite-size kubo formula results", "modified k-linear rashba model" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }