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Evidence for ubiquitous strong electron–phonon coupling in high-temperature superconductors

Author

Listed:
  • A. Lanzara

    (Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University
    Advanced Light Source, Lawrence Berkeley National Laboratory)

  • P. V. Bogdanov

    (Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University)

  • X. J. Zhou

    (Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University)

  • S. A. Kellar

    (Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University)

  • D. L. Feng

    (Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University)

  • E. D. Lu

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • T. Yoshida

    (Department of Physics;)

  • H. Eisaki

    (Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University)

  • A. Fujimori

    (Department of Physics;)

  • K. Kishio

    (University of Tokyo)

  • J.-I. Shimoyama

    (University of Tokyo)

  • T. Noda

    (University of Tokyo)

  • S. Uchida

    (University of Tokyo)

  • Z. Hussain

    (Advanced Light Source, Lawrence Berkeley National Laboratory)

  • Z.-X. Shen

    (Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University)

Abstract

Coupling between electrons and phonons (lattice vibrations) drives the formation of the electron pairs responsible for conventional superconductivity1. The lack of direct evidence for electron–phonon coupling in the electron dynamics of the high-transition-temperature superconductors has driven an intensive search for an alternative mechanism. A coupling of an electron with a phonon would result in an abrupt change of its velocity and scattering rate near the phonon energy. Here we use angle-resolved photoemission spectroscopy to probe electron dynamics—velocity and scattering rate—for three different families of copper oxide superconductors. We see in all of these materials an abrupt change of electron velocity at 50–80 meV, which we cannot explain by any known process other than to invoke coupling with the phonons associated with the movement of the oxygen atoms. This suggests that electron–phonon coupling strongly influences the electron dynamics in the high-temperature superconductors, and must therefore be included in any microscopic theory of superconductivity.

Suggested Citation

  • A. Lanzara & P. V. Bogdanov & X. J. Zhou & S. A. Kellar & D. L. Feng & E. D. Lu & T. Yoshida & H. Eisaki & A. Fujimori & K. Kishio & J.-I. Shimoyama & T. Noda & S. Uchida & Z. Hussain & Z.-X. Shen, 2001. "Evidence for ubiquitous strong electron–phonon coupling in high-temperature superconductors," Nature, Nature, vol. 412(6846), pages 510-514, August.
    • Handle: RePEc:nat:nature:v:412:y:2001:i:6846:d:10.1038_35087518
    DOI: 10.1038/35087518
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    Cited by:

    1. Yigui Zhong & Shaozhi Li & Hongxiong Liu & Yuyang Dong & Kohei Aido & Yosuke Arai & Haoxiang Li & Weilu Zhang & Youguo Shi & Ziqiang Wang & Shik Shin & H. N. Lee & H. Miao & Takeshi Kondo & Kozo Okaza, 2023. "Testing electron–phonon coupling for the superconductivity in kagome metal CsV3Sb5," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    2. Shunsuke Hasegawa & Hodaka Kikuchi & Shinichiro Asai & Zijun Wei & Barry Winn & Gabriele Sala & Shinichi Itoh & Takatsugu Masuda, 2024. "Field control of quasiparticle decay in a quantum antiferromagnet," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    3. Ta Tang & Brian Moritz & Cheng Peng & Zhi-Xun Shen & Thomas P. Devereaux, 2023. "Traces of electron-phonon coupling in one-dimensional cuprates," Nature Communications, Nature, vol. 14(1), pages 1-7, December.

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