Theory of interband electron Raman scattering in YBa2Cu3O7: A probe of unconventional superconductivity

H. Monien, A. Zawadowski

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

In the Raman spectra measured on YBa2Cu3O7 single crystals there are continua of electronic origin. It is proposed that in addition to the intraband scattering there is an interband contribution due to the charge transfer between the bridging oxygen and the plane, which is strongly coupled to the 330-cm-1 phonon. We suggest that the entirely gapless feature of the spectra with B1g symmetry is a probe of nodes in the superconducting gap. The compatible d- and p-pairing states are listed.

Original languageEnglish
Pages (from-to)911-914
Number of pages4
JournalPhysical review letters
Volume63
Issue number8
DOIs
Publication statusPublished - Jan 1 1989

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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