Al doping influence on crystal growth, structure and superconducting properties of Y(Ca)Ba2Cu3O7−y whiskers
✍ Scribed by Calore, L.; Rahman Khan, M.M.; Cagliero, S.; Agostino, A.; Truccato, M.; Operti, L.
- Book ID
- 121437483
- Publisher
- Elsevier Science
- Year
- 2013
- Tongue
- English
- Weight
- 428 KB
- Volume
- 551
- Category
- Article
- ISSN
- 0925-8388
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Superconducting YBa2Cu~O7 crystals have been grown using a BaO-CuO flux. The morphology of the crystals shows a clear dependence on the flux composition and on the growth conditions. Cube like crystals and platelets with a size of some millimeters are grown.
A series of solid solutions containing CO3 groups, (CyCul\_y)(Srl \_z/2Caz/2)2(Y1 \_xCax\_zSrz)Cu20 d with 0.30<x <0.70, was prepared at 1313 K under the atmosphere of 02-4202. The values ofy (0.48-0.67) and z (0.14--0.28) depend on the total Ca content, x. The length of the a-axis increases from 3.