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A distinct bosonic mode in an electron-doped high-transition-temperature superconductor

Author

Listed:
  • F. C. Niestemski

    (Boston College, Chestnut Hill, Massachusetts 02467, USA)

  • S. Kunwar

    (Boston College, Chestnut Hill, Massachusetts 02467, USA)

  • S. Zhou

    (Boston College, Chestnut Hill, Massachusetts 02467, USA)

  • Shiliang Li

    (The University of Tennessee, Knoxville, Tennessee 37996-1200, USA)

  • H. Ding

    (Boston College, Chestnut Hill, Massachusetts 02467, USA)

  • Ziqiang Wang

    (Boston College, Chestnut Hill, Massachusetts 02467, USA)

  • Pengcheng Dai

    (The University of Tennessee, Knoxville, Tennessee 37996-1200, USA
    Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393, USA)

  • V. Madhavan

    (Boston College, Chestnut Hill, Massachusetts 02467, USA)

Abstract

Superconductivity's glue Perhaps the most debated current issue in the field of high-temperature superconductivity is the microscopic origin of the superconducting 'glue' that binds electrons into superconducting pairs. The leading contenders are lattice vibrations (phonons) and spin excitations, with the additional possibility of pairing without mediators. Niestemski et al. report spatially resolved, reproducible spectroscopy of the electron-doped superconductor known as PLCCO that reveal a collective mode in the material's electronic excitations at 10.5 ± 2.5 meV. This is consistent with an electronic origin of the mode — and possibly the superconducting 'glue' — consistent with the involvement of spin-excitations rather than phonons.

Suggested Citation

  • F. C. Niestemski & S. Kunwar & S. Zhou & Shiliang Li & H. Ding & Ziqiang Wang & Pengcheng Dai & V. Madhavan, 2007. "A distinct bosonic mode in an electron-doped high-transition-temperature superconductor," Nature, Nature, vol. 450(7172), pages 1058-1061, December.
    • Handle: RePEc:nat:nature:v:450:y:2007:i:7172:d:10.1038_nature06430
    DOI: 10.1038/nature06430
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    Cited by:

    1. Bin Hu & Hui Chen & Yuhan Ye & Zihao Huang & Xianghe Han & Zhen Zhao & Hongqin Xiao & Xiao Lin & Haitao Yang & Ziqiang Wang & Hong-Jun Gao, 2024. "Evidence of a distinct collective mode in Kagome superconductors," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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