Lattice and charge effects in high-temperature superconductors

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

Research output: Contribution to journalArticlepeer-review


We present the results of inelastic neutron-scattering measurements of a twinned crystal of YBa2Cu3O6.95 using the MAPS spectrometer of the ISIS facility of the Rutherford-Appleton Laboratory as well as the HFIR of the Oak Ridge National Laboratory. The dispersion of the Cu-O bond-stretching modes indicates a strong dielectric anisotropy within the plane and associated electronic anisotropy, supporting the dynamic stripe model. The results suggest a possibility that phonons play a major role in the mechanism of high-temperature superconductivity.

Original languageEnglish
Pages (from-to)S1635-S1637
JournalApplied Physics A: Materials Science and Processing
Issue numberSUPPL.II
Publication statusPublished - 2002 Dec
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science


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