Abstract
We measured the spectral dependency of persistent photoconductivity (PPC) in GdBa2Cu3O6.3 from the near infrared to the ultraviolet energy range. For a photon energy of 4.1 eV there is a strong enhancement in the excitation efficiency. Photons with this energy create electron-hole pairs close to oxygen vacancies in the Cu-O chain layers. This increases the probability of the excited electron to get trapped at an oxygen vacancy, and thus leads to a strong enhancement of the excitation efficiency of the PPC.
Original language | English (US) |
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Pages (from-to) | 1123-1124 |
Number of pages | 2 |
Journal | Czechoslovak Journal of Physics |
Volume | 46 |
Issue number | SUPPL. 2 |
DOIs | |
State | Published - 1996 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy