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

H. Monien; A. Zawadowski

doi:10.1103/PhysRevLett.63.911

← Back to search

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

H. Monien, A. Zawadowski

DOI 10.1103/PhysRevLett.63.911 · Physical Review Letters

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

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.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown