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Strain-dependent magnetic configurations in manganite-titanate heterostructures probed with soft X-ray techniques

  • R. V. ChopdekarEmail author
  • J. Heidler
  • C. Piamonteze
  • Y. Takamura
  • A. Scholl
  • S. Rusponi
  • H. Brune
  • L. J. Heyderman
  • F. Nolting
Regular Article
Part of the following topical collections:
  1. Topical issue: New Trends in Magnetism and Magnetic Materials

Abstract

We present a detailed study on the strain-induced magnetic domain structure of a (La,Sr)MnO3 thin film epitaxially grown on a BaTiO3 substrate through the use of polarization-dependent X-ray photoemission electron microscopy and X-ray absorption spectroscopy. Angular-dependent measurements allow us to detect vector magnetization on a single-domain scale, and we relate the strain-induced changes in magnetic anisotropy of the ferromagnetic film to the ferroelectric domain structure of the underlying substrate using X-ray magnetic circular and linear dichroism spectro-microscopy. Comparisons to measurements on a nearly strain free film of (La,Sr)MnO3 grown on a (La,Sr)(Al,Ta)O3 substrate illustrate that the BaTiO3 ferroelectric domain structure imprints specific domain sizes and wall orientations in the (La,Sr)MnO3/BaTiO3 artificial multiferroic heterostructure. Furthermore, a change of the BaTiO3 ferroelectric domain structure either with temperature or with applied electric field results in a corresponding change in the (La,Sr)MnO3 ferromagnetic domain structure, thus showing a possible route to obtain room-temperature electric field control of magnetic anisotropy at the nanoscale.

Keywords

Magnetic Anisotropy Ferroelectric Domain Linear Dichroism Magnetic Domain Structure Ferromagnetic Domain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • R. V. Chopdekar
    • 1
    Email author
  • J. Heidler
    • 1
  • C. Piamonteze
    • 1
  • Y. Takamura
    • 2
  • A. Scholl
    • 3
  • S. Rusponi
    • 4
  • H. Brune
    • 4
  • L. J. Heyderman
    • 1
  • F. Nolting
    • 1
  1. 1.Paul Scherrer InstitutVilligen PSISwitzerland
  2. 2.Department of Chemical Engineering and Materials ScienceUniversity of CaliforniaDavisUSA
  3. 3.Advanced Light SourceLawrence Berkeley National LaboratoryBerkeleyUSA
  4. 4.Institute of Condensed Matter PhysicsÉcole Polytechnique Fédérale de LausanneLausanneSwitzerland

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