title: Room temperature electrical manipulation of giant magnetoresistance in spin valves exchange-biased with BiFeO3.
abstract: Magnetoelectric multiferroics are attractive materials for the development of low-power electrically controlled spintronic devices. Here we report the optimization of the exchange bias as well as the giant magnetoresistance effect (GMR) of spin valves deposited on top of BiFeO(3)-based heterostructures. We show that the exchange bias can be electrically controlled through a change in the relative proportion of 109° domain walls and propose solutions toward a reversible process.
authors.affiliation: Unité Mixte de Physique CNRS/Thales, 1 Av. A. Fresnel, Campus de l'Ecole Polytechnique, 91767 Palaiseau, France, and Université Paris-Sud, 91405 Orsay, France.
authors.forename: Julie
authors.initials: J
authors.lastname: Allibe
authors.forename: Stéphane
authors.initials: S
authors.lastname: Fusil
authors.forename: Karim
authors.initials: K
authors.lastname: Bouzehouane
authors.forename: Christophe
authors.initials: C
authors.lastname: Daumont
authors.forename: Daniel
authors.initials: D
authors.lastname: Sando
authors.forename: Eric
authors.initials: E
authors.lastname: Jacquet
authors.forename: Cyrille
authors.initials: C
authors.lastname: Deranlot
authors.forename: Manuel
authors.initials: M
authors.lastname: Bibes
authors.forename: Agnès
authors.initials: A
authors.lastname: Barthélémy
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D004574:Electromagnetic Fields; D005290:Ferric Compounds / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008280:Magnetics / Q000379:methods*; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties; D013696:Temperature
chemical_list: D005290:Ferric Compounds; D046911:Macromolecular Substances; C000499:ferric oxide; D001729:Bismuth