Temporal Evolution of Defects and Related Electric Properties in He-Irradiated YBa${}_2$Cu${}_3$O${}_{7-\delta }$ Thin Films

Sandra Keppert, Bernd Aichner, Philip Rohringer +8

Thin films of the superconductor YBa${}_2$Cu${}_3$O${}_{7-\delta }$ (YBCO) were modified by low-energy light-ion irradiation employing collimated or focused He${}^{+}$ beams, and the long-term sta…