{ "id": "0706.3529", "version": "v1", "published": "2007-06-24T17:31:03.000Z", "updated": "2007-06-24T17:31:03.000Z", "title": "Mesoscopic fluctuations of spin currents", "authors": [ "Yuli V. Nazarov" ], "comment": "13 pages, submitted to New J.P", "journal": "New Journal of Physics 9 (2007) 352", "doi": "10.1088/1367-2630/9/9/352", "categories": [ "cond-mat.mes-hall" ], "abstract": "Spin currents may be generated by applying bias voltages V to the nanostructures even in the absence of spin-active ferromagnetic interfaces. Most theoretical proposals concentrate on a concrete spin-orbit interaction and on the disorder-averaged effect. It remains underappreciated that any spin-orbit interaction produces random spin currents with a typical amplitude e^2 V/\\hbar not affected by disorder. This work addresses such mesoscopic fluctuations of spin currents for generic model of a nanostructure where several quantum connectors meet in a single node. The analysis is performed in the framework of recently developed quantum circuit theory of G_Q corrections and reveals four distinct mechanisms of spin current fluctuations. The results are elaborated for simple models of tunnel and ballistic connectors.", "revisions": [ { "version": "v1", "updated": "2007-06-24T17:31:03.000Z" } ], "analyses": { "keywords": [ "mesoscopic fluctuations", "spin-orbit interaction produces random spin", "interaction produces random spin currents", "concrete spin-orbit interaction", "developed quantum circuit theory" ], "tags": [ "journal article" ], "publication": { "journal": "New Journal of Physics", "year": 2007, "month": "Sep", "volume": 9, "pages": 352 }, "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007NJPh....9..352N" } } }