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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Matsumoto, S. Kiyoshi, T. Asano, T. Ozaki, O. Koyanagi, K. Fujihira, J.-I. Wada, H. |
| Copyright Year | 2002 |
| Abstract | In this paper, we propose new applications of bulk high-temperature superconductors in high magnetic fields. High-temperature superconductors, such as Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+d/ (BSCCO) or YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO), maintain their superconductivity over 30 T at 4.2 K. A field-cooled superconducting hollow cylinder traps the magnetic flux inside it. An increase of the applied magnetic field induces shielding current in the interior of the cylinder to maintain the magnetic flux constant. By suitably arranging the cylinders, we can concentrate the magnetic flux and enhance the gradient of the magnetic field. In order to confirm these concepts, we performed experiments using bulk YBCO hollow cylinders. The cylinders are made of YBa/sub 2/Cu/sub 3/O/sub 7-x/ quasi single-crystals containing Y/sub 2/BaCuO/sub 5/ particles. They have an inner diameter of 5 mm, an outer diameter of 10 mm, and a height of 10 mm. Using three hollow cylinders, a magnetic concentration of 0.49 T was observed in an applied magnetic field of 10.14 T. The energized hollow cylinder with a shielding current modify surrounding magnetic fields and magnetic force fields. A magnetic force field enhanced by using a hollow cylinder was calculated numerically for an applied magnetic field of 10 T and estimated to exceed 6000 T/sup 2//m. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 1652 |
| Ending Page | 1655 |
| Page Count | 4 |
| File Size | 266672 |
| 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 | Magnetic flux Magnetic forces Yttrium barium copper oxide Magnetic shielding High temperature superconductors Magnetic fields Strontium Bismuth compounds Superconductivity Superconducting magnets |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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