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Single-domain multiferroic BiFeO3 films

Author

Listed:
  • C.-Y. Kuo

    (Max Planck Institute for Chemical Physics of Solids)

  • Z. Hu

    (Max Planck Institute for Chemical Physics of Solids)

  • J. C. Yang

    (Max Planck Institute for Chemical Physics of Solids)

  • S.-C. Liao

    (National Tsing Hua University)

  • Y. L. Huang

    (National Chiao Tung University)

  • R. K. Vasudevan

    (Centre for Nanophase Materials Sciences, Oak Ridge National Laboratory)

  • M. B. Okatan

    (Centre for Nanophase Materials Sciences, Oak Ridge National Laboratory)

  • S. Jesse

    (Centre for Nanophase Materials Sciences, Oak Ridge National Laboratory)

  • S. V. Kalinin

    (Centre for Nanophase Materials Sciences, Oak Ridge National Laboratory)

  • L. Li

    (Centre for Nanophase Materials Sciences, Oak Ridge National Laboratory
    Multi-disciplinary Materials Research Center, Frontier Institute of Science and Technology, Xi’an Jiaotong University)

  • H. J. Liu

    (National Chiao Tung University)

  • C.-H. Lai

    (National Tsing Hua University)

  • T. W. Pi

    (National Synchrotron Radiation Research Center)

  • S. Agrestini

    (Max Planck Institute for Chemical Physics of Solids)

  • K. Chen

    (Synchrotron SOLEIL, L'Orme des Merisiers)

  • P. Ohresser

    (Synchrotron SOLEIL, L'Orme des Merisiers)

  • A. Tanaka

    (ADSM, Hiroshima University)

  • L. H. Tjeng

    (Max Planck Institute for Chemical Physics of Solids)

  • Y. H. Chu

    (National Chiao Tung University
    National Chiao Tung University
    Institute of Physics, Academia Sinica)

Abstract

The strong coupling between antiferromagnetism and ferroelectricity at room temperature found in BiFeO3 generates high expectations for the design and development of technological devices with novel functionalities. However, the multi-domain nature of the material tends to nullify the properties of interest and complicates the thorough understanding of the mechanisms that are responsible for those properties. Here we report the realization of a BiFeO3 material in thin film form with single-domain behaviour in both its magnetism and ferroelectricity: the entire film shows its antiferromagnetic axis aligned along the crystallographic b axis and its ferroelectric polarization along the c axis. With this we are able to reveal that the canted ferromagnetic moment due to the Dzyaloshinskii–Moriya interaction is parallel to the a axis. Furthermore, by fabricating a Co/BiFeO3 heterostructure, we demonstrate that the ferromagnetic moment of the Co film does couple directly to the canted moment of BiFeO3.

Suggested Citation

  • C.-Y. Kuo & Z. Hu & J. C. Yang & S.-C. Liao & Y. L. Huang & R. K. Vasudevan & M. B. Okatan & S. Jesse & S. V. Kalinin & L. Li & H. J. Liu & C.-H. Lai & T. W. Pi & S. Agrestini & K. Chen & P. Ohresser , 2016. "Single-domain multiferroic BiFeO3 films," Nature Communications, Nature, vol. 7(1), pages 1-7, November.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12712
    DOI: 10.1038/ncomms12712
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