Abstract
The results of polarized light-scattering studies of single-crystal YBa2Cu3O7-δ are presented. In the normal state, strong electronic scattering is observed both directly and through interference effects with certain phonons. Below T, this electronic scattering undergoes a redistribution that is due to gap formation. The redistribution of the continuum below Tc, has a strong symmetry dependence, suggesting possible gap anisotropy in YBa2Cu3O7-δ. Phonon self-energy effects are also shown to be consistent with gap anisotropy. Finally, studies of untwinned single crystals illustrate striking optical anisotropy of the Raman spectra in the a-b plane.
Original language | English (US) |
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Pages (from-to) | 436-439 |
Number of pages | 4 |
Journal | Journal of the Optical Society of America B: Optical Physics |
Volume | 6 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1989 |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics