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Publikováno v:
Zeitschrift f�r Physik B Condensed Matter. 96:5-12
The room temperature femtosecond relaxation dynamics of reflection spectra of YBa2Cu3O7-δ with different oxygen contents and PrBa2Cu3O7 epitaxial films have been studied. The relaxation times of ΔR(t) in YBa2Cu3O7-δ increase from less than 100 fs