Lattice and charge effects in high-temperature superconductors

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

Research output: Contribution to journalArticle

Abstract

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
JournalApplied Physics A: Materials Science and Processing
Volume74
Issue numberSUPPL.II
DOIs
Publication statusPublished - 2002 Dec 1
Externally publishedYes

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ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

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