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Properties of oxygen-deficient edge junctions made of YBa 2 Cu 3 O 6.6 as the superconductor and YBa 2 Cu 3Ϫx Fe x O y as the barrier are reported. These junctions show weak-link characteristics when the edge angle is 50°, while tunneling-like behavior is observed when the edge angle is 36°. In all junctions strong peaks in the conductivity are found, which depend on the specific junction geometry. Some series of peaks were identified as due to Tomasch oscillations in the cover electrode, whichdoi:10.1063/1.123355 fatcat:56qtal5jjvbznn4nwc3m4nyt2m