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Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover

Author

Listed:
  • Yonggang Wang

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR)
    Carnegie Institution of Washington)

  • Jianjun Ying

    (Carnegie Institution of Washington
    Carnegie Institution of Washington)

  • Zhengyang Zhou

    (Peking University
    Chongqing University)

  • Junliang Sun

    (Peking University)

  • Ting Wen

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR))

  • Yannan Zhou

    (Huanghe Science and Technology College)

  • Nana Li

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR))

  • Qian Zhang

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR))

  • Fei Han

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR)
    Carnegie Institution of Washington)

  • Yuming Xiao

    (Carnegie Institution of Washington)

  • Paul Chow

    (Carnegie Institution of Washington)

  • Wenge Yang

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR)
    Carnegie Institution of Washington)

  • Viktor V. Struzhkin

    (Carnegie Institution of Washington)

  • Yusheng Zhao

    (Southern University of Science and Technology)

  • Ho-kwang Mao

    (Center for High Pressure Science and Technology Advanced Research (HPSTAR)
    Carnegie Institution of Washington)

Abstract

The discovery of iron-based superconductors (FeSCs), with the highest transition temperature (Tc) up to 55 K, has attracted worldwide research efforts over the past ten years. So far, all these FeSCs structurally adopt FeSe-type layers with a square iron lattice and superconductivity can be generated by either chemical doping or external pressure. Herein, we report the observation of superconductivity in an iron-based honeycomb lattice via pressure-driven spin-crossover. Under compression, the layered FePX3 (X = S, Se) simultaneously undergo large in-plane lattice collapses, abrupt spin-crossovers, and insulator-metal transitions. Superconductivity emerges in FePSe3 along with the structural transition and vanishing of magnetic moment with a starting Tc ~ 2.5 K at 9.0 GPa and the maximum Tc ~ 5.5 K around 30 GPa. The discovery of superconductivity in iron-based honeycomb lattice provides a demonstration for the pursuit of transition-metal-based superconductors via pressure-driven spin-crossover.

Suggested Citation

  • Yonggang Wang & Jianjun Ying & Zhengyang Zhou & Junliang Sun & Ting Wen & Yannan Zhou & Nana Li & Qian Zhang & Fei Han & Yuming Xiao & Paul Chow & Wenge Yang & Viktor V. Struzhkin & Yusheng Zhao & Ho-, 2018. "Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover," Nature Communications, Nature, vol. 9(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04326-1
    DOI: 10.1038/s41467-018-04326-1
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    Cited by:

    1. Jun Cui & Emil Viñas Boström & Mykhaylo Ozerov & Fangliang Wu & Qianni Jiang & Jiun-Haw Chu & Changcun Li & Fucai Liu & Xiaodong Xu & Angel Rubio & Qi Zhang, 2023. "Chirality selective magnon-phonon hybridization and magnon-induced chiral phonons in a layered zigzag antiferromagnet," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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