Dependence of Tc on hole concentration in Bi2Sr3-xCaxCu208+δ
✍ Scribed by W. Urland; F. Tietz
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 271 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0038-1098
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📜 SIMILAR VOLUMES
Correlation between superconducting T~ and hole concentration was investigated in the Bi2Sr2CaCu208+~ system. The hole concentration was varied by substituting cations with different valences for Sr or Ca. In order to increase the hole concentration, some samples were annealed at 430°C in 250 bar of
The dependence on the oxygen concentration of normal and superconducting properties of ceramic samples of Pb2Sr2Y~ \_xCaxCu3Os+a has been investigated in the composition range of 0 \_< x< 0.5 and 0\_< fi< 2. The superconductivity in each sample with different x is suppressed with increasing ~, which