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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Niwa, T. Araki, T. Muroga, T. Iijima, Y. Yamada, Y. Saitoh, T. Hirabayashi, I. Shiohara, Y. |
| Copyright Year | 2002 |
| Abstract | We investigated calcining conditions for YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO) films by metalorganic deposition using trifluoroacetates. We measured residual carbon content by secondary ion mass spectroscopy (SIMS) and critical current density J/sub c/ values of the films calcined with various heat treatments. Precursor films are decomposed in calcining duration at 200 to 250/spl deg/C, and simultaneously harmful residue such as carbon content is generated. SIMS results of carbon intensity show calcination is more effective than extension of the duration at 200 to 250/spl deg/C to reduce carbon content. J/sub c/ values of films with the calcination varied with the duration, reaching a maximum at about 10 hours. The J/sub c/ values of the films depend on decomposition of trifluoroacetates and CuO nanocrystallites growth, rather than the influence of carbon content. We have succeeded in fabricating the YBCO films of 217 to 241 nm thickness with high J/sub c/ values; 1.7 to 2.9 MA/cm/sup 2/ (77 K, 0 T) on CeO/sub 2//Gd/sub 2/Zr/sub 2/O/sub 7//hastelloy -C. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 2747 |
| Ending Page | 2750 |
| Page Count | 4 |
| File Size | 223575 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 13 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Calcination Yttrium barium copper oxide Superconducting films Zirconium Critical current density Heat treatment Fabrication Superconductivity Laboratories Infrared heating |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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