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A spin triplet supercurrent through the half-metallic ferromagnet CrO2

Author

Listed:
  • R. S. Keizer

    (Delft University of Technology)

  • S. T. B. Goennenwein

    (Delft University of Technology
    Bayerische Akademie der Wissenschaften)

  • T. M. Klapwijk

    (Delft University of Technology)

  • G. Miao

    (University of Alabama
    Brown University)

  • G. Xiao

    (Brown University)

  • A. Gupta

    (University of Alabama)

Abstract

Together at last Under most conditions, conventional superconductivity and ferromagnetism are mutually exclusive. Although they have been observed together in iron under pressure, the principle holds as a rule. But now Keizer et al. describe a system in which superconductivity and magnetism are finally seen working together. The material in which this occurs is chromium dioxide, well known as the active component of magnetic recording tape. It's a half-metallic ferromagnet, and can sustain a Josephson (or ‘spin triplet’) supercurrent that switches with the direction of magnetization.

Suggested Citation

  • R. S. Keizer & S. T. B. Goennenwein & T. M. Klapwijk & G. Miao & G. Xiao & A. Gupta, 2006. "A spin triplet supercurrent through the half-metallic ferromagnet CrO2," Nature, Nature, vol. 439(7078), pages 825-827, February.
    • Handle: RePEc:nat:nature:v:439:y:2006:i:7078:d:10.1038_nature04499
    DOI: 10.1038/nature04499
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    Cited by:

    1. Guojing Hu & Changlong Wang & Shasha Wang & Ying Zhang & Yan Feng & Zhi Wang & Qian Niu & Zhenyu Zhang & Bin Xiang, 2023. "Long-range skin Josephson supercurrent across a van der Waals ferromagnet," Nature Communications, Nature, vol. 14(1), pages 1-6, December.
    2. Song-Bo Zhang & Lun-Hui Hu & Titus Neupert, 2024. "Finite-momentum Cooper pairing in proximitized altermagnets," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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