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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hunt, B.D. Foote, M.C. Bajuk, J. |
| Copyright Year | 1965 |
| Abstract | The fabrication and electrical properties of edge-geometry YBaCuO/Au/Nb weak links are described. Superconductor/normal-metal/superconductor (SNS) devices of this type serve as sensitive probes of the electrical quality of the YBaCuO/Au interface. For device applications, the edge geometry has the advantage of placing the critical N/S device interface on the longer coherence length a-b surface, and it simplifies the fabrication of weak links with submicron dimensions. These structures are fabricated using laser-ablated, in situ, c-axis-oriented YBaCuO thin films, with both oxygen-annealed and unannealed YBaCuO/Au interfaces. The YBaCuO film edges are patterned using ion milling, followed by a low-energy-ion cleaning step and in situ deposition of Au and Nb. Devices with areas in the 10/sup -7/-10/sup -8/-cm/sup 2/ range have been fabricated with R/sub n/A products lower than 10/sup -8/ Omega -cm/sup 2/ and critical current densities up to 3 kA/cm/sup 2/. Josephson coupling is verified by the observation of microwave steps under 10-GHz microwave irradiation. The best results have been obtained with annealed YBaCuO/Au interfaces. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 848 |
| Ending Page | 851 |
| Page Count | 4 |
| File Size | 479765 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 27 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1991-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Yttrium barium copper oxide Gold Superconducting devices Niobium Superconducting microwave devices Probes Geometrical optics Optical device fabrication Transistors Milling |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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