title: Optical Writing of Magnetic Properties by Remanent Photostriction.
abstract: We present an optically induced remanent photostriction in BiFeO_{3}, resulting from the photovoltaic effect, which is used to modify the ferromagnetism of Ni film in a hybrid BiFeO_{3}/Ni structure. The 75% change in coercivity in the Ni film is achieved via optical and nonvolatile control. This photoferromagnetic effect can be reversed by static or ac electric depolarization of BiFeO_{3}. Hence, the strain dependent changes in magnetic properties are written optically, and erased electrically. Light-mediated straintronics is therefore a possible approach for low-power multistate control of magnetic elements relevant for memory and spintronic applications.
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS-UdS 23 rue du Loess, 67034 Cedex 2, Strasbourg, France.
authors.forename: V
authors.initials: V
authors.lastname: Iurchuk
authors.affiliation: Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin, Albert-Einstein-Straße 15, 12489 Berlin, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Schick
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS-UdS 23 rue du Loess, 67034 Cedex 2, Strasbourg, France.
authors.forename: J
authors.initials: J
authors.lastname: Bran
authors.affiliation: SPEC, CEA, CNRS, Université Paris, Saclay, CEA Saclay, 91191 Gif sur Yvette, France.
authors.forename: D
authors.initials: D
authors.lastname: Colson
authors.affiliation: SPEC, CEA, CNRS, Université Paris, Saclay, CEA Saclay, 91191 Gif sur Yvette, France.
authors.forename: A
authors.initials: A
authors.lastname: Forget
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS-UdS 23 rue du Loess, 67034 Cedex 2, Strasbourg, France.
authors.forename: D
authors.initials: D
authors.lastname: Halley
authors.affiliation: Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin, Albert-Einstein-Straße 15, 12489 Berlin, Germany.|Institut für Physik & Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam/Golm, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Koc
authors.affiliation: Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin, Albert-Einstein-Straße 15, 12489 Berlin, Germany.|Institut für Physik & Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam/Golm, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Reinhardt
authors.affiliation: Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin, Albert-Einstein-Straße 15, 12489 Berlin, Germany.|Institut für Physik & Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam/Golm, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Kwamen
authors.affiliation: University of Sheffield, Department of Materials Science and Engineering, Mappin Street, Sheffield S1 3JD, United Kingdom.
authors.forename: N A
authors.initials: NA
authors.lastname: Morley
authors.affiliation: Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin, Albert-Einstein-Straße 15, 12489 Berlin, Germany.|Institut für Physik & Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam/Golm, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Bargheer
authors.affiliation: SPEC, CEA, CNRS, Université Paris, Saclay, CEA Saclay, 91191 Gif sur Yvette, France.
authors.forename: M
authors.initials: M
authors.lastname: Viret
authors.affiliation: Institut für Experimentelle Physik, TU Bergakademie Freiberg, Leipziger Straße 23, 09596 Freiberg, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Gumeniuk
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS-UdS 23 rue du Loess, 67034 Cedex 2, Strasbourg, France.
authors.forename: G
authors.initials: G
authors.lastname: Schmerber
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS-UdS 23 rue du Loess, 67034 Cedex 2, Strasbourg, France.
authors.forename: B
authors.initials: B
authors.lastname: Doudin
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS-UdS 23 rue du Loess, 67034 Cedex 2, Strasbourg, France.
authors.forename: B
authors.initials: B
authors.lastname: Kundys