- Abstract:
-
The influence of oxygen pressure upon superconducting properties of lead-based 1212 copper oxides Pb1-xSr2Ca0.5Y0.5Cu2+xO7±δ has been investigated as a function of time and annealing temperature. Annealings of (Pb0.7Cu0.3)Sr2Ca0.5Y0.5Cu2O7±δ at 400°C for 10 h show that this material becomes superconductive as the oxygen pressure reaches 10 bar, the critical temperature being increased from 0 to 29 K. The maximum value of Tc = 42 K is obtained for an oxygen pressure ranging between 40 and 60 b...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1016/0921-4534(91)90503-Q
-
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- Journal:
- PHYSICA C
- Volume:
- 177
- Issue:
- 4-6
- Pages:
- 461-468
- Publication date:
- 1991-07-01
- DOI:
- ISSN:
-
0921-4534
- URN:
-
uuid:42ea1b79-3436-4608-995e-8759ebfef966
- Source identifiers:
-
46596
- Local pid:
- pubs:46596
- Language:
- English
- Copyright date:
- 1991
Journal article
OXYGEN-PRESSURE, THE KEY FACTOR FOR OPTIMIZATION OF SUPERCONDUCTIVITY IN THE 1212-PHASE PB1-XSR2CA0.5Y0.5CU2+XO7+/-DELTA
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