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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Watanabe, T. Ohashi, Y. Maeda, T. Mimura, M. Hirabayashi, I. |
| Copyright Year | 2002 |
| Abstract | The surface-oxidation-epitaxy (SOE) method promotes simple and cost-effective process to form a biaxially textured NiO template for epitaxial growth of YBa/sub 2/Cu/sub 3/O/sub x/ (Y-Ba-Cu-O) film. SOE tapes of 100 m in length were prepared by the reel-to-reel oxidation system with the tape moving speed of 10 m/h. A highly biaxially textured NiO layer, which had /spl Delta//spl phi/ (full width at half maximum from X-ray /spl phi/-scan) of less than 23/spl deg/ throughout the whole length, was successfully formed under appropriate conditions of temperature and atmosphere. In order to improve surface conditions for obtaining high critical current density (J/sub c/) for Y-Ba-Cu-O film on the SOE-tapes, we have investigated the effect of thin oxide cap layers such as MgO, SrTiO/sub 3/, CeO/sub 2/, and so on. When BaZrO/sub 3/ was used as a cap layer, J/sub c/ and critical current (I/sub c/) of Y-Ba-Cu-O films grown by the pulsed laser deposition (PLD) at 77 K were measured to be 1.3 MA/cm/sup 2/ and 137 A, respectively. These values were for a 10 mm-width short tape. A continuous deposition of YBCO on 10-cm long /spl times/10-mm wide SOE tape with SrTiO/sub 3/ or BaZrO/sub 3/ cap layer was also investigated. The end-to-end I/sub c/ was 1 A (J/sub c/ of 1.6 /spl times/10/sup 4/ A/cm/sup 2/) for SrTiO/sub 3/ cap layer and 4 A (J/sub c/ of 5.6 /spl times/10/sup 4/ A/cm/sup 2/) for BaZrO/sub 3/ one. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 2484 |
| Ending Page | 2487 |
| Page Count | 4 |
| File Size | 267981 |
| 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 | Fabrication Yttrium barium copper oxide Epitaxial growth Substrates Pulsed laser deposition Pulse measurements Surface texture Oxidation Temperature Atmosphere |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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