{ "id": "cond-mat/0509130", "version": "v1", "published": "2005-09-06T01:41:10.000Z", "updated": "2005-09-06T01:41:10.000Z", "title": "Spin-Polarized Transport in Ferromagnet-Marginal Fermi Liquid Systems", "authors": [ "Hai-Feng Mu", "Gang Su", "Qing-Rong Zheng", "Biao Jin" ], "comment": "5 pages, 6 figures, Phys. Rev. B 71, 064412 (2005)", "journal": "Phys. Rev. B 71, 064412 (2005)", "doi": "10.1103/PhysRevB.71.064412", "categories": [ "cond-mat.mes-hall" ], "abstract": "Spin-polarized transport through a marginal Fermi liquid (MFL) which is connected to two noncollinear ferromagnets via tunnel junctions is discussed in terms of the nonequilibrium Green function approach. It is found that the current-voltage characteristics deviate obviously from the ohmic behavior, and the tunnel current increases slightly with temperature, in contrast to those of the system with a Fermi liquid. The tunnel magnetoresistance (TMR) is observed to decay exponentially with increasing the bias voltage, and to decrease slowly with increasing temperature. With increasing the coupling constant of the MFL, the current is shown to increase linearly, while the TMR is found to decay slowly. The spin-valve effect is observed.", "revisions": [ { "version": "v1", "updated": "2005-09-06T01:41:10.000Z" } ], "analyses": { "keywords": [ "ferromagnet-marginal fermi liquid systems", "spin-polarized transport", "nonequilibrium green function approach", "current-voltage characteristics deviate", "tunnel current increases" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }