Intergrain coupling and flux creep in textured Bi-based oxide superconductor
โ Scribed by H. Kumakura; K. Togano; H. Maeda; E. Yanagisawa
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 119 KB
- Volume
- 162-164
- Category
- Article
- ISSN
- 0921-4534
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The time decay of the magnetization was studied on Tl -Ba -Ca -Cu -0 and Bi ( Pb ) -Sr -Ca -Cu -0 superconductors. In the Tl -based compound, the results provide evidence for a non thermally activated flux motion at low temperature suggesting quantum tunneling of vortices. In the Bi-based compound a
YBa2Cu307 crystals fabricated by a quench and melt growth process contain fine Y2BaCuO5 particles. These fine precipitates are considered to have three beneficial effects: they suppress crack formation; they promote oxygen diffusion; and they act as pinning centres. Such crystals exhibit larger flux
Structural refinements of the new compounds Bi2Sr3\_ xYxCu208 + y in the range of x that gives insulating rather than superconducting behaviour (x~ 0.6 and 1.0) have been obtained from single crystal X-ray and neutron powder diffraction data. Results indicate oxygen nonstoichiometry and suggest cond