title: Proximity effects induced in graphene by magnetic insulators: first-principles calculations on spin filtering and exchange-splitting gaps.
abstract: We report on first-principles calculations of spin-dependent properties in graphene induced by its interaction with a nearby magnetic insulator (europium oxide, EuO). The magnetic proximity effect results in spin polarization of graphene π orbitals by up to 24%, together with a large exchange-splitting band gap of about 36 meV. The position of the Dirac cone is further shown to depend strongly on the graphene-EuO interlayer. These findings point toward the possible engineering of spin gating by the proximity effect at a relatively high temperature, which stands as a hallmark for future all-spin information processing technologies.
authors.affiliation: SPINTEC, CEA/CNRS/UJF-Grenoble 1/Grenoble-INP, INAC, 38054 Grenoble, France.
authors.forename: H X
authors.initials: HX
authors.lastname: Yang
authors.affiliation: SPINTEC, CEA/CNRS/UJF-Grenoble 1/Grenoble-INP, INAC, 38054 Grenoble, France.
authors.forename: A
authors.initials: A
authors.lastname: Hallal
authors.affiliation: SPINTEC, CEA/CNRS/UJF-Grenoble 1/Grenoble-INP, INAC, 38054 Grenoble, France.
authors.forename: D
authors.initials: D
authors.lastname: Terrade
authors.affiliation: SPSMS-INAC-CEA, 17 rue des Martyrs, 38054 Grenoble, France.
authors.forename: X
authors.initials: X
authors.lastname: Waintal
authors.affiliation: CIN2 (ICN-CSIC) and Universitat Autónoma de Barcelona, Catalan Institute of Nanotechnology, Campus UAB, 08193 Bellaterra, Spain and Institucio Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Roche
authors.affiliation: SPINTEC, CEA/CNRS/UJF-Grenoble 1/Grenoble-INP, INAC, 38054 Grenoble, France.
authors.forename: M
authors.initials: M
authors.lastname: Chshiev