{ "id": "0709.2120", "version": "v1", "published": "2007-09-13T16:45:53.000Z", "updated": "2007-09-13T16:45:53.000Z", "title": "Optimized stray-field-induced enhancement of the electron spin precession by buried Fe gates", "authors": [ "L. Meier", "G. Salis", "N. Moll", "C. Ellenberger", "I. Shorubalko", "U. Wahlen", "K. Ensslin", "E. Gini" ], "comment": "4 pages, 2 figures", "journal": "Applied Physics Letters 91, 162507 (2007)", "doi": "10.1063/1.2800289", "categories": [ "cond-mat.mes-hall" ], "abstract": "The magnetic stray field from Fe gates is used to modify the spin precession frequency of InGaAs/GaAs quantum-well electrons in an external magnetic field. By using an etching process to position the gates directly in the plane of the quantum well, the stray-field influence on the spin precession increases significantly compared with results from previous studies with top-gated structures. In line with numerical simulations, the stray-field-induced precession frequency increases as the gap between the ferromagnetic gates is reduced. The inhomogeneous stray field leads to additional spin dephasing.", "revisions": [ { "version": "v1", "updated": "2007-09-13T16:45:53.000Z" } ], "analyses": { "subjects": [ "73.63.Hs", "72.25.Mk" ], "keywords": [ "electron spin precession", "buried fe gates", "optimized stray-field-induced enhancement", "precession increases", "precession frequency" ], "tags": [ "journal article" ], "publication": { "publisher": "AIP", "journal": "Applied Physics Letters", "year": 2007, "month": "Oct", "volume": 91, "number": 16, "pages": 162507 }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007ApPhL..91p2507M" } } }