{ "id": "1207.7243", "version": "v2", "published": "2012-07-31T13:46:52.000Z", "updated": "2012-08-02T12:15:54.000Z", "title": "Gate-Control of Spin Precession in Quantum Hall Edge States", "authors": [ "T. Nakajima", "Kuan-Ting Lin", "S. Komiyama" ], "categories": [ "cond-mat.mes-hall", "quant-ph" ], "abstract": "Electrical control and detection of spin precession are experimentally demonstrated by using spin-resolved edge states in the integer quantum Hall regime. Spin precession is triggered at a corner of a biased metal gate, where electron orbital motion makes a sharp turn leading to a nonadiabatic change in the effective magnetic field via spin-orbit interaction. The phase of precession is controlled by the group velocity of edge-state electrons tuned by gate bias voltage: A spin-FET device is thus realized by all-electrical means, without invoking ferromagnetic material. The effect is also interpreted in terms of a Mach-Zehnder-type spin interferometer.", "revisions": [ { "version": "v2", "updated": "2012-08-02T12:15:54.000Z" } ], "analyses": { "keywords": [ "quantum hall edge states", "spin precession", "integer quantum hall regime", "gate-control", "electron orbital motion" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1207.7243N" } } }