Electron-phonon interactions in HTSC cuprates

T. Egami, J. H. Chung, R. J. McQueeney, M. Yethiraj, H. A. Mook, C. Frost, Y. Petrov, F. Dogan, Y. Inamura, M. Arai, S. Tajima, Y. Endoh

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Phonons have been generally considered to be irrelevant to the high-temperature superconductivity in the cuprates. However, such a bias is usually based upon the assumption of conventional electron-phonon coupling, while in the cuprates the coupling can be rather unconventional because of strong electron correlation. We present the results of our recent measurements of phonon dispersion in YBa2Cu3O6+x by inelastic neutron scattering. These suggest certain phonon modes interact strongly with electrons and are closely involved in the superconductivity phenomenon with possible contribution to pairing.

Original languageEnglish
Pages (from-to)62-68
Number of pages7
JournalPhysica B: Condensed Matter
Publication statusPublished - 2002 May
Externally publishedYes

Bibliographical note

Funding Information:
The authors are grateful to M. Tachiki, S. Sachdev and J.C. Phillips for useful discussions. The work was supported by the National Science Foundation through DMR96-28134 and DMR01-02565.

Copyright 2008 Elsevier B.V., All rights reserved.


  • Electron-phonon coupling
  • High-temperature superconductivity
  • Neutron scattering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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