{ "id": "1404.2311", "version": "v2", "published": "2014-04-08T21:44:47.000Z", "updated": "2015-02-18T18:04:50.000Z", "title": "Modulation of pure spin currents with a ferromagnetic insulator", "authors": [ "Estitxu Villamor", "Miren Isasa", "Saül Vélez", "Amilcar Bedoya-Pinto", "Paolo Vavassori", "Luis E. Hueso", "F. Sebastian Bergeret", "Fèlix Casanova" ], "comment": "5 pages and 4 figures + supplemental material (10 pages, 7 figures)", "journal": "Phys. Rev. B 91, 020403 (2015)", "doi": "10.1103/PhysRevB.91.020403", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "We propose and demonstrate spin manipulation by magnetically controlled modulation of pure spin currents in cobalt/copper lateral spin valves, fabricated on top of the magnetic insulator Y$_3$Fe$_5$O$_{12}$ (YIG). The direction of the YIG magnetization can be controlled by a small magnetic field. We observe a clear modulation of the non-local resistance as a function of the orientation of the YIG magnetization with respect to the polarization of the spin current. Such a modulation can only be explained by assuming a finite spin-mixing conductance at the Cu/YIG interface, as it follows from the solution of the spin-diffusion equation. These results open a new path towards the development of spin logics.", "revisions": [ { "version": "v1", "updated": "2014-04-08T21:44:47.000Z", "title": "Magnetic gating of pure spin currents", "abstract": "We propose and demonstrate a novel way of spin manipulation by magnetically controlled gating of pure spin currents in cobalt/copper lateral spin valves, fabricated on top of the magnetic insulator Y$_3$Fe$_5$O$_{12}$ (YIG). The direction of the YIG magnetization can be controlled by a small magnetic field. We observe a clear modulation of the non-local resistance as a function of the orientation of the YIG magnetization with respect to the polarization of the spin current. Such a modulation can only be explained by assuming a finite spin-mixing conductance at the Cu/YIG interface, as it follows from the solution of the spin diffusion equation. These results open a new path towards the development of spin logics", "comment": "12 pages", "journal": null, "doi": null, "authors": [ "Estitxu Villamor", "Miren Isasa", "Saül Vélez", "Amilcar Bedoya-Pinto", "Luis E. Hueso", "F. S. Bergeret", "Fèlix Casanova" ] }, { "version": "v2", "updated": "2015-02-18T18:04:50.000Z" } ], "analyses": { "subjects": [ "72.25.Ba", "72.25.Mk", "75.47.Lx" ], "keywords": [ "pure spin currents", "ferromagnetic insulator", "modulation", "cobalt/copper lateral spin valves", "yig magnetization" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2015, "month": "Jan", "volume": 91, "number": 2, "pages": "020403" }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015PhRvB..91b0403V" } } }