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Ferromagnetism in LaFeO3/LaNiO3 superlattices with high Curie temperature

Author

Listed:
  • Tianlin Zhou

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Fei Gao

    (Chinese Academy of Sciences)

  • Qinghua Zhang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yuansha Chen

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xinzhe Hu

    (Chinese Academy of Sciences)

  • Yuzhou He

    (Chinese Academy of Sciences)

  • Yuchen Zhao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jianjie Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Minghang Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Shaojin Qi

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Fengxia Hu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jirong Sun

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yunzhong Chen

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Baogen Shen

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Chinese Academy of Sciences
    Chinese Academy of Sciences)

Abstract

Interfacing complex oxides in atomically engineered layered structures can give rise to a wealth of exceptional electronic and magnetic properties that surpass those of the individual building blocks. Herein, we demonstrate a ferromagnetic spin order with a high Curie temperature of 608 K in superlattices consisting of otherwise paramagnetic perovskite LaNiO3 (LNO) and antiferromagnetic LaFeO3 (LFO). The ferromagnetism likely results from the covalent exchange due to interfacial charge transfer from Fe to Ni cations. By deliberately controlling the thickness of the LNO sublayers thus the amount of charge transfer, a robust ferromagnetism of 4 uB is realized for a stacking periodicity consisting of one single unit cell of both LNO and LFO, an emergent double perovskite phase of La2FeNiO6 with B-site layered ordering configurations. The ferromagnetic LFO/LNO superlattices offer great potential for the search of emergent magnetodielectric and/or multiferroic properties as well as applications in spintronics and electrocatalysts.

Suggested Citation

  • Tianlin Zhou & Fei Gao & Qinghua Zhang & Yuansha Chen & Xinzhe Hu & Yuzhou He & Yuchen Zhao & Jianjie Li & Minghang Li & Shaojin Qi & Fengxia Hu & Jirong Sun & Yunzhong Chen & Baogen Shen, 2025. "Ferromagnetism in LaFeO3/LaNiO3 superlattices with high Curie temperature," Nature Communications, Nature, vol. 16(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-58968-z
    DOI: 10.1038/s41467-025-58968-z
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    References listed on IDEAS

    as
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