Microstructures and the role of Pb in doped Bisrcacuo superconductor

It is widely being accepted that Pb-addition enhances the stability and promotes single-phase formation of the high T c (2223) phase in the Bi-family of cuprate superconductors, and yet, the exact mechanism by which it takes place remains a subject to be explored. This paper discusses the nucleation...

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Bibliographic Details
Published in:Materials research bulletin 1992, Vol.27 (1), p.109-116
Main Authors: Upadhyay, P.L., Rao, S.U.M., Nagpal, K.C., Sharma, R.G.
Format: Article
Language:English
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Summary:It is widely being accepted that Pb-addition enhances the stability and promotes single-phase formation of the high T c (2223) phase in the Bi-family of cuprate superconductors, and yet, the exact mechanism by which it takes place remains a subject to be explored. This paper discusses the nucleation and growth processes of the low and high T C phases of the above system which lead to the identification of an important role of Pb. The analysis is based on microstructural and XRD studies carried out on un-doped and Pb-doped samples of Bisrcauo.
ISSN:0025-5408
1873-4227
DOI:10.1016/0025-5408(92)90048-5