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VOLUME 59 (1994) | ISSUE 3 | PAGE 167
Direct observation of a Riedel peak at a YBaCuO end-type Josephson junction
The frequency dependence of the amplitude of the oscillatory current 7](Ω) of intrinsic Josephson generation at a single YBaCuO end-type junction has been measured by a direct nonresonant method. The current-voltage characteristic of the junction has the shape characteristic of contacts with a direct conductivity. A significantly broadened Riedel peak is observed. An estimate of the attenuation coefficient of the energy gap, δ~ 1.6χ 10-3, is insufficiently low.