{ "id": "0909.2762", "version": "v1", "published": "2009-09-15T10:29:34.000Z", "updated": "2009-09-15T10:29:34.000Z", "title": "Spin current generation and detection by a double quantum dot structure", "authors": [ "J. P. Dahlhaus", "S. Maier", "A. Komnik" ], "comment": "5 pages, 5 figures (eps)", "journal": "Phys. Rev. B 81, 075110 (2010)", "doi": "10.1103/PhysRevB.81.075110", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el" ], "abstract": "We propose a device acting as a spin valve which is based on a double quantum dot structure with parallel topology. Using the exact analytical solution for the noninteracting case we argue that, at a certain constellation of system parameters and externally applied fields, the electric current through the constriction can become almost fully spin-polarized. We discuss the influence of the coupling asymmetry, finite temperatures and interactions on the efficiency of the device and make predictions for the experimental realization of the effect.", "revisions": [ { "version": "v1", "updated": "2009-09-15T10:29:34.000Z" } ], "analyses": { "subjects": [ "73.23.-b", "73.63.Kv", "85.75.-d" ], "keywords": [ "double quantum dot structure", "spin current generation", "spin valve", "parallel topology", "experimental realization" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2010, "month": "Feb", "volume": 81, "number": 7, "pages": "075110" }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010PhRvB..81g5110D" } } }