| Autor: |
Alain Schuhl, G. Creuzet, R. Cabanel, B. Ghyselen |
| Rok vydání: |
1990 |
| Předmět: |
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| Zdroj: |
Science and Technology of Thin Film Superconductors 2 ISBN: 9781468413472 |
| DOI: |
10.1007/978-1-4684-1345-8_44 |
| Popis: |
We have performed successfully the co-deposition of Dy1Ba2Cu3O7 superconducting films without any post treatment, in an ambient oxygen pressure compatible with an MBE. A D.C. plasma cell produces atomic oxygen and injects it at the surface of the substrate. The growth was performed at temperatures between 450°C and 650°C. The oxygen pressure (i.e. 2.10−5 Torr) was the same during the growth and the cooling. Relatively thick films (300–500nm) have been produced by this method. We also obtained films of 30nm with the same resistive behavior. The resistive transition is a few K large while the onset is close to 90 K. X-ray diffraction shows the predominance of the 1:2:3:7 phase, with the c-axis perpendicular to the surface. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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