Effect of Ga2O3 substitution in Bi-2212 superconductor
β Scribed by N. Kannan; C. Bansal; G. Rajaram
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 395 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0038-1098
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π SIMILAR VOLUMES
A polycrystalhne sample of BhSr2Ca 0 aYe)2Cu20 a + ~ was prepared by a solid state reaction method The effect of annealing temperatures on TΒ’ both m oxygen flow and secondary vacuum were investigated using a.c. susceptlblhty measurements The onset of T~ increases from 60 K to 82 K as a result of oxy
## Samples with the nominal composition BizSrzCa,\_,Na,CuzO, (with x=0.05,0.2,0.4 and 0.5) were prepared by the solid state reaction method. The role of Na and the effect of various heat treatments in the 2212 composition were studied. From the X-ray diffraction data it is found that the samples a