{ "id": "cond-mat/0210241", "version": "v1", "published": "2002-10-10T14:41:26.000Z", "updated": "2002-10-10T14:41:26.000Z", "title": "Spin-Dependent Transport Through An Interacting Quantum Dot", "authors": [ "Ping Zhang", "Qi-Kun Xue", "Yu-Peng Wang", "X. C. Xie" ], "comment": "9 pages, 5 figures", "doi": "10.1103/PhysRevLett.89.286803", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el" ], "abstract": "We study the nonequilibrium spin transport through a quantum dot containing two spin levels coupled to the magnetic electrodes. A formula for the spin-dependent current is obtained and is applied to discuss the linear conductance and magnetoresistance in the interacting regime, where the so-called Kondo effect arises. We show that the Kondo resonance and the correlation-induced spin splitting of the dot levels may be systematically controlled by internal magnetization in the electrodes. As a result, when the electrodes are in parallel magnetic configuration, the linear conductance is characterized by two spin-resolved peaks. Furthermore, the presence of the spin-flip process in the dot splits the Kondo resonance into three peaks.", "revisions": [ { "version": "v1", "updated": "2002-10-10T14:41:26.000Z" } ], "analyses": { "keywords": [ "interacting quantum dot", "spin-dependent transport", "linear conductance", "kondo resonance", "parallel magnetic configuration" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }