Characterization of Josephson Junctions for the Elaboration of High-Tc SQUIDS
Physica status solidi B, Basic research(2000)
Abstract
In this work we report the fabrication of superconductor loops, formed by an array of two Josephson junctions (JJ) in parallel. The JJ are based on YBa2Cu3O7-x epitaxial thin films deposited on SrTiO3 bicrystal substrates with misorientation angles of 24 degrees and 36.8 degrees. The epitaxial, c-axis oriented YBa2Cu3O7-x films were grown "in situ" by a high oxygen pressure de sputtering technique. For the fabrication of the superconductor loop a photolithographic method and a non-aqueous chemical etching were used. The superconducting properties of the superconductor loops were analyzed by measuring the current-voltage characteristics. The magnetic field dependence of the critical current I-c(B) and the I-V curves under microwave irradiation showed weak-link Josephson behavior. The dependence of I-c(B) shows an interference pattern due to the phase differences across the both junctions.
MoreTranslated text
Key words
Josephson Voltage Standards,High-Temperature Superconductivity
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined