title: Signatures of a two-dimensional ferromagnetic electron gas at the La0.7Sr0.3MnO3/SrTiO3 interface arising from orbital reconstruction.
abstract: The magnetoresistance of La0.7Sr0.3MnO3/SrTiO3 superlattices with magnetic field rotating out-of-plane shows unexpected peaks for in-plane fields. Resistivity calculations with spin-orbit coupling reveal that orbital reconstruction at the manganite interface leads to a 2D ferromagnetic electron gas coupled antiparallel to the manganite "bulk". These orbital and magnetic reconstructions are supported by X-ray linear dichroism and ab initio calculations.
authors.affiliation: GFMC, Departamento de Física Aplicada III, Universidad Complutense de Madrid, Campus Moncloa, E-28040, Madrid, Spain; Laboratorio de Heteroestructuras con aplicación en Spintronica, Unidad Asociada Consejo Superior de Investigaciones Científicas/Universidad Complutense Madrid, Sor Juana Inés de la Cruz, 3, E-28049, Madrid, Spain.
authors.forename: Norbert Marcel
authors.initials: NM
authors.lastname: Nemes
authors.forename: María José
authors.initials: MJ
authors.lastname: Calderón
authors.forename: Juan Ignacio
authors.initials: JI
authors.lastname: Beltrán
authors.forename: Flavio Yair
authors.initials: FY
authors.lastname: Bruno
authors.forename: Javier
authors.initials: J
authors.lastname: García-Barriocanal
authors.forename: Zouhair
authors.initials: Z
authors.lastname: Sefrioui
authors.forename: Carlos
authors.initials: C
authors.lastname: León
authors.forename: Mar
authors.initials: M
authors.lastname: García-Hernández
authors.forename: María Carmen
authors.initials: MC
authors.lastname: Muñoz
authors.forename: Luis
authors.initials: L
authors.lastname: Brey
authors.forename: Jacobo
authors.initials: J
authors.lastname: Santamaría
keywords: 2DEG; magnetoresistance; manganites; oxide interfaces