ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The critical currents in high quality thin films of the high Tc superconductor, YBa2Cu3O7−δ, can be controllably reduced by orders of magnitude using ion irradiation. This reduction in critical current occurs without substantial decrease in Tc or increase in room-temperature resistivity. Using this technique, we have fabricated weak links that exhibit an ac Josephson effect at 77 K.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.100652
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