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dc.contributor.authorRaes, Bart-
dc.contributor.authorScheerder, Jeroen E.-
dc.contributor.authorCostache, Marius V.-
dc.contributor.authorBonell, Fréderic-
dc.contributor.authorSierra, Juan F.-
dc.contributor.authorCuppens, Jo-
dc.contributor.authorVondel, Joris van de-
dc.contributor.authorValenzuela, Sergio O.-
dc.date.accessioned2018-01-22T10:25:26Z-
dc.date.available2018-01-22T10:25:26Z-
dc.date.issued2016-
dc.identifierdoi: 10.1038/ncomms11444-
dc.identifiere-issn: 2041-1723-
dc.identifier.citationNature Communications 7: 11444 (2016)-
dc.identifier.urihttp://hdl.handle.net/10261/159384-
dc.description.abstractWe determine the spin-lifetime anisotropy of spin-polarized carriers in graphene. In contrast to prior approaches, our method does not require large out-of-plane magnetic fields and thus it is reliable for both low-and high-carrier densities. We first determine the in-plane spin lifetime by conventional spin precession measurements with magnetic fields perpendicular to the graphene plane. Then, to evaluate the out-of-plane spin lifetime, we implement spin precession measurements under oblique magnetic fields that generate an out-of-plane spin population. We find that the spin-lifetime anisotropy of graphene on silicon oxide is independent of carrier density and temperature down to 150 K, and much weaker than previously reported. Indeed, within the experimental uncertainty, the spin relaxation is isotropic. Altogether with the gate dependence of the spin lifetime, this indicates that the spin relaxation is driven by magnetic impurities or random spin-orbit or gauge fields.-
dc.description.sponsorshipThis research was partially supported by the European Research Council under Grant Agreement No. 308023 SPINBOUND, by the Spanish Ministry of Economy and Competitiveness, MINECO (under Contract No. MAT2013-46785-P and Severo Ochoa No. SEV-2013-0295), and by the Secretariat for Universities and Research, Knowledge Department of the Generalitat de Catalunya. M.V.C., J.F.S. and J.C. acknowledge support from the Ramón y Cajal, Juan de la Cierva and Beatriu de Pinós programs, respectively. F.B. acknowledges funding from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme FP7/2007-2013/ under REA Grant Agreement No. 624897. J.E.S. and J.V.d.V. acknowledge funding from the Methusalem Funding of the Flemish Government and the Research Foundation-Flanders (FWO).-
dc.publisherNature Publishing Group-
dc.relationMINECO/ICTI2013-2016/SEV-2013-0295-
dc.relationMINECO/ICTI2013-2016/MAT2013-46785-P-
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/308023-
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/306652-
dc.relation.isversionofPublisher's version-
dc.rightsopenAccess-
dc.titleDetermination of the spin-lifetime anisotropy in graphene using oblique spin precession-
dc.typeartículo-
dc.identifier.doihttp://dx.doi.org/10.1038/ncomms11444-
dc.relation.publisherversionhttps://doi.org/10.1038/ncomms11444-
dc.date.updated2018-01-22T10:25:26Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.rights.licensehttp://creativecommons.org/licenses/by/4.0/-
dc.contributor.funderFlemish Government-
dc.contributor.funderResearch Foundation - Flanders-
dc.contributor.funderMethuselah Foundation-
dc.contributor.funderGeneralitat de Catalunya-
dc.contributor.funderEuropean Commission-
dc.contributor.funderEuropean Research Council-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.relation.csic-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100002809es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000781es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003130es_ES
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