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<strong>Evolution of Superconducting Properties of Coexistent Bi-2212 and Bi-2223 phases in BSCCO</strong>

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Title Statement <strong>Evolution of Superconducting Properties of Coexistent Bi-2212 and Bi-2223 phases in BSCCO</strong>
 
Added Entry - Uncontrolled Name V, Gayathri ; Indira Gandhi Centre for Atomic Research
A. T., Sathyanarayana ; Indira Gandhi Centre for Atomic Research
E. P., Amaladass ; Indira Gandhi Centre for Atomic Research
K., Vinod ; Indira Gandhi Centre for Atomic Research
T., Geetha Kumary ; Indira Gandhi Centre for Atomic Research
R., Pandian ; Indira Gandhi Centre for Atomic Research
Mani, Awadhesh ; Indira Gandhi Centre for Atomic Research
 
Uncontrolled Index Term BSCCO; High temperature superconductivity; Proximity effect; Critical current density
 
Summary, etc. The evolution of superconducting properties of BSCCO superconductors, inadvertently hosting the two superconducting phases Bi-2212 and Bi-2223 have been investigated in pristine and Pb doped BSCCO. The superconducting transition temperature <em>T<sub>C</sub></em> of Bi-2212 phase monotonically increases with increasing Bi-2223 phase fraction. On the other hand Bi-2223 phase exhibits depression in <em>T<sub>C</sub></em> for its lower phase fractions (&lt;24%) but attains its bulk value as Bi-2223 phase fraction is increased to 30%. This behavior has been rationalized by invoking the interplay of proximity effects between the two coexisting phases and establishment of Bi-2223 superconducting percolation path. In addition to aiding the formation of BSCCO with higher Bi-2223 phase fraction, the Pb substitution also leads to an enhancement of critical current density by the creation of pinning centres.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2021-06-11 13:06:17
 
Electronic Location and Access http://op.niscair.res.in/index.php/IJPAP/article/view/39831
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 59, ##issue.no## 5 (2021): Indian Journal of Pure & Applied Physics
 
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