Abstract
Superconducting thick films of Bi2Sr2CaCu2Oy are successfully prepared by in situ reaction between amorphous film of Bi2SrCaOx and CuO/Cu substrate. The film of Bi2SrCaOx with a 5 µm thickness reacted with the oxidized copper to yield (00l) oriented Bi2Sr2CaCu2Oy films by heating at 820–850°C for 1–60 min in air. These films showed a superconductivity with the maximum Tc(end)=83 K obtained by heating in air at 855°C for 20 min. Similar superconductivity was obtained by heating thick films at 850°C for short periods such as 1 min.
Original language | English |
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Pages (from-to) | L949-L951 |
Journal | Japanese journal of applied physics |
Volume | 29 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1990 Jun |
All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)