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Observation of polar vortices in oxide superlattices

Author

Listed:
  • A. K. Yadav

    (University of California
    Lawrence Berkeley National Laboratory)

  • C. T. Nelson

    (University of California
    University of California
    National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory)

  • S. L. Hsu

    (University of California
    University of California
    National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory)

  • Z. Hong

    (Pennsylvania State University)

  • J. D. Clarkson

    (University of California
    University of California)

  • C. M. Schlepütz

    (Advanced Photon Source, Argonne National Laboratory)

  • A. R. Damodaran

    (University of California)

  • P. Shafer

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • E. Arenholz

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • L. R. Dedon

    (University of California)

  • D. Chen

    (University of California
    University of California)

  • A. Vishwanath

    (Lawrence Berkeley National Laboratory
    University of California)

  • A. M. Minor

    (University of California
    Lawrence Berkeley National Laboratory
    National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory)

  • L. Q. Chen

    (Pennsylvania State University)

  • J. F. Scott

    (Schools of Chemistry and Physics, University of St Andrews)

  • L. W. Martin

    (University of California
    Lawrence Berkeley National Laboratory)

  • R. Ramesh

    (University of California
    Lawrence Berkeley National Laboratory
    University of California)

Abstract

In material systems with several interacting degrees of freedom, the complex interplay between these factors can give rise to exotic phases; now superlattices consisting of alternating layers of PbTiO3 and SrTiO3 are found to exhibit an unusual form of ferroelectric ordering in the PbTiO3 layers, in which the electric dipoles arrange themselves into regular, ordered arrays of vortex–antivortex structures.

Suggested Citation

  • A. K. Yadav & C. T. Nelson & S. L. Hsu & Z. Hong & J. D. Clarkson & C. M. Schlepütz & A. R. Damodaran & P. Shafer & E. Arenholz & L. R. Dedon & D. Chen & A. Vishwanath & A. M. Minor & L. Q. Chen & J. , 2016. "Observation of polar vortices in oxide superlattices," Nature, Nature, vol. 530(7589), pages 198-201, February.
    • Handle: RePEc:nat:nature:v:530:y:2016:i:7589:d:10.1038_nature16463
    DOI: 10.1038/nature16463
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