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Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe

Author

Listed:
  • J. P. Sun

    (Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences)

  • K. Matsuura

    (University of Tokyo)

  • G. Z. Ye

    (Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences
    School of Physical Science and Technology, Yunnan University)

  • Y. Mizukami

    (University of Tokyo)

  • M. Shimozawa

    (The Institute for Solid State Physics, The University of Tokyo)

  • K. Matsubayashi

    (The University of Electro-Communications)

  • M. Yamashita

    (The Institute for Solid State Physics, The University of Tokyo)

  • T. Watashige

    (Kyoto University)

  • S. Kasahara

    (Kyoto University)

  • Y. Matsuda

    (Kyoto University)

  • J. -Q. Yan

    (Oak Ridge National Laboratory
    University of Tennessee)

  • B. C. Sales

    (Oak Ridge National Laboratory)

  • Y. Uwatoko

    (The Institute for Solid State Physics, The University of Tokyo)

  • J. -G. Cheng

    (Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences)

  • T. Shibauchi

    (University of Tokyo)

Abstract

The coexistence and competition between superconductivity and electronic orders, such as spin or charge density waves, have been a central issue in high transition-temperature (Tc) superconductors. Unlike other iron-based superconductors, FeSe exhibits nematic ordering without magnetism whose relationship with its superconductivity remains unclear. Moreover, a pressure-induced fourfold increase of Tc has been reported, which poses a profound mystery. Here we report high-pressure magnetotransport measurements in FeSe up to ∼15 GPa, which uncover the dome shape of magnetic phase superseding the nematic order. Above ∼6 GPa the sudden enhancement of superconductivity (Tc≤38.3 K) accompanies a suppression of magnetic order, demonstrating their competing nature with very similar energy scales. Above the magnetic dome, we find anomalous transport properties suggesting a possible pseudogap formation, whereas linear-in-temperature resistivity is observed in the normal states of the high-Tc phase above 6 GPa. The obtained phase diagram highlights unique features of FeSe among iron-based superconductors, but bears some resemblance to that of high-Tc cuprates.

Suggested Citation

  • J. P. Sun & K. Matsuura & G. Z. Ye & Y. Mizukami & M. Shimozawa & K. Matsubayashi & M. Yamashita & T. Watashige & S. Kasahara & Y. Matsuda & J. -Q. Yan & B. C. Sales & Y. Uwatoko & J. -G. Cheng & T. S, 2016. "Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe," Nature Communications, Nature, vol. 7(1), pages 1-7, November.
  • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12146
    DOI: 10.1038/ncomms12146
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    Cited by:

    1. M. Čulo & S. Licciardello & K. Ishida & K. Mukasa & J. Ayres & J. Buhot & Y.-T. Hsu & S. Imajo & M. W. Qiu & M. Saito & Y. Uezono & T. Otsuka & T. Watanabe & K. Kindo & T. Shibauchi & S. Kasahara & Y., 2023. "Expanded quantum vortex liquid regimes in the electron nematic superconductors FeSe1−xSx and FeSe1−xTex," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. Lu Cao & Wenyao Liu & Geng Li & Guangyang Dai & Qi Zheng & Yuxin Wang & Kun Jiang & Shiyu Zhu & Li Huang & Lingyuan Kong & Fazhi Yang & Xiancheng Wang & Wu Zhou & Xiao Lin & Jiangping Hu & Changqing J, 2021. "Two distinct superconducting states controlled by orientations of local wrinkles in LiFeAs," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    3. N. N. Wang & M. W. Yang & Z. Yang & K. Y. Chen & H. Zhang & Q. H. Zhang & Z. H. Zhu & Y. Uwatoko & L. Gu & X. L. Dong & J. P. Sun & K. J. Jin & J.-G. Cheng, 2022. "Pressure-induced monotonic enhancement of Tc to over 30 K in superconducting Pr0.82Sr0.18NiO2 thin films," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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