Abstract
Raman measurements in (Formula presented)6.72-6.82) high-(Formula presented) superconductors reveal intense phonon scattering due to an electronic resonance localized near oxygen vacancies on the CuO chains. Below room temperature the resonance can be photobleached in a manner similar to reported persistent photoinduced superconductivity effects, indicating photon-assisted oxygen ordering or electron vacancy capture. By comparing Raman and x-ray diffraction data we establish a correlation between the stability of the photoinduced state and the oxygen-ordering kinetics in the CuO chains.
| Original language | English |
|---|---|
| Pages (from-to) | R14072-R14075 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 57 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 1998 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics