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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jia, Q.X. Fan, Y. Kwon, C. Mombourquette, C. Reagor, D. Cantor, R. Zhou, J.P. Gim, Y. Jones, C. McDevitt, J.T. Goodenough, J.B. |
| Copyright Year | 2002 |
| Abstract | By using a cation-modified and corrosion-resistant compound of (Pr/sub y/Gd/sub 0.6-y/)Ca/sub 0.4/Ba/sub 1.6/La/sub 0.4/Cu/sub 3/O/sub 7/ (y=0.4, 0.5, and 0.6) as normal-metal barrier materials, high-temperature superconducting Josephson junctions have been fabricated in a ramp-edge superconductor/normal-metal/superconductor (SNS) configuration. We have tuned the Pr substitution level in order to achieve the optimal electrical resistivity of the barrier layer for high-performance SNS junctions. The junctions fabricated with these normal-metal barriers show well-defined RSJ-like current vs voltage characteristics at liquid-nitrogen temperature. The junction performance is mainly controlled by the N-layer instead of the interface. We have also fabricated dc superconducting quantum interference devices based on ramp-edge SNS technology with these normal-metal barriers. The ratio of peak-to-peak voltage modulation of the superconducting quantum interference devices to the I/sub c/R/sub n/ product is more than 30%. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 3374 |
| Ending Page | 3377 |
| Page Count | 4 |
| File Size | 352148 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 9 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1999-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Superconducting devices Josephson junctions Superconducting materials Yttrium barium copper oxide High temperature superconductors SQUIDs Electrodes Superconducting epitaxial layers Voltage Chemical technology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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