{ "id": "cond-mat/0601291", "version": "v2", "published": "2006-01-13T15:36:53.000Z", "updated": "2006-05-30T11:46:44.000Z", "title": "Influence of Roughness and Disorder on Tunneling Magnetoresistance", "authors": [ "P. X. Xu", "V. M. Karpan", "K. Xia", "M. Zwierzycki", "I. Marushchenko", "P. J. Kelly" ], "journal": "Phys. Rev. B 73, 180402(R) (2006)", "doi": "10.1103/PhysRevB.73.180402", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "A systematic, quantitative study of the effect of interface roughness and disorder on the magnetoresistance of FeCo$|$vacuum$|$FeCo magnetic tunnel junctions is presented based upon parameter-free electronic structure calculations. Surface roughness is found to have a very strong effect on the spin-polarized transport while that of disorder in the leads (leads consisting of a substitutional alloy) is weaker but still sufficient to suppress the huge tunneling magneto-resistance (TMR) predicted for ideal systems.", "revisions": [ { "version": "v2", "updated": "2006-05-30T11:46:44.000Z" } ], "analyses": { "keywords": [ "tunneling magnetoresistance", "parameter-free electronic structure calculations", "feco magnetic tunnel junctions", "ideal systems", "interface roughness" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }