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Tunable and switchable magnetic dipole patterns in nanostructured superconductors

Author

Listed:
  • Jun-Yi Ge

    (Shanghai University
    INPAC-Institute for Nanoscale Physics and Chemistry, KU Leuven)

  • Vladimir N. Gladilin

    (INPAC-Institute for Nanoscale Physics and Chemistry, KU Leuven
    TQC-Theory of Quantum and Complex Systems, Universiteit Antwerpen)

  • Jacques Tempere

    (TQC-Theory of Quantum and Complex Systems, Universiteit Antwerpen)

  • Jozef T. Devreese

    (TQC-Theory of Quantum and Complex Systems, Universiteit Antwerpen)

  • Victor V. Moshchalkov

    (INPAC-Institute for Nanoscale Physics and Chemistry, KU Leuven)

Abstract

Design and manipulation of magnetic moment arrays have been at the focus of studying the interesting cooperative physical phenomena in various magnetic systems. However, long-range ordered magnetic moments are rather difficult to achieve due to the excited states arising from the relatively weak exchange interactions between the localized moments. Here, using a nanostructured superconductor, we investigate a perfectly ordered magnetic dipole pattern with the magnetic poles having the same distribution as the magnetic charges in an artificial spin ice. The magnetic states can simply be switched on/off by applying a current flowing through nanopatterned area. Moreover, by coupling magnetic dipoles with the pinned vortex lattice, we are able to erase the positive/negative poles, resulting in a magnetic dipole pattern of only one polarity, analogous to the recently predicted vortex ice. These switchable and tunable magnetic dipole patterns open pathways for the study of exotic ordering phenomena in magnetic systems.

Suggested Citation

  • Jun-Yi Ge & Vladimir N. Gladilin & Jacques Tempere & Jozef T. Devreese & Victor V. Moshchalkov, 2018. "Tunable and switchable magnetic dipole patterns in nanostructured superconductors," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05045-3
    DOI: 10.1038/s41467-018-05045-3
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