{ "id": "0811.0660", "version": "v4", "published": "2008-11-05T11:31:42.000Z", "updated": "2009-11-03T20:25:52.000Z", "title": "Resonant charge and spin transport in a t-stub coupled to a superconductor", "authors": [ "Sourin Das", "Sumathi Rao", "Arijit Saha" ], "comment": "This is the published version", "journal": "Eur. Phys. J. B 72, 139-144 (2009)", "categories": [ "cond-mat.mes-hall" ], "abstract": "We study transport through a single channel t-stub geometry strongly coupled to a superconducting reservoir. In contrast to the standard stub geometry which has both transmission resonances and anti-resonances in the coherent limit, we find that due to the proximity effect, this geometry shows neither a T=1 resonance (T is the transmission probability for electrons incident on the t-stub) nor a T=0 anti-resonance as we vary the energy of the incident electron. Instead, we find that there is only one resonant value at T=1/4, where charge transport vanishes while the spin transport is perfect.", "revisions": [ { "version": "v4", "updated": "2009-11-03T20:25:52.000Z" } ], "analyses": { "subjects": [ "73.23.-b", "74.45.+c", "72.25.Ba" ], "keywords": [ "spin transport", "resonant charge", "t-stub geometry", "superconductor" ], "tags": [ "journal article" ], "publication": { "doi": "10.1140/epjb/e2009-00346-5", "journal": "European Physical Journal B", "year": 2009, "month": "Nov", "volume": 72, "number": 1, "pages": 139 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009EPJB...72..139D" } } }