Kumar, Jagdish and Ahluwalia, P. K. and Kishan, H. and Awana, V. P. S. (2010) Significant Improvement in Superconductivity by Substituting Pb at Bi-site in Bi2−xPbxSr2CaCu2O8 with x=0.0 to 0.40. Journal of Superconductivity and Novel Magnetism, 23 (4). pp. 493-499. ISSN 1557-1947

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Here we report the synthesis and superconducting properties of bulk Bi2−xPbxSr2CaCu2O8 (x = 0.0 to 0.4) compound. Though the superconducting transition temperature (Tc) decreases marginally, the critical current density under magnetic field Jc(H) increases with Pb content. An optimization is observed for x = 0.16 with Jc(H) (7.894 × 103 A/cm2) that is nearly doubled in comparison to the pristine compound. It seems that controlled substitution of Pb at Bi-site in bulk Bi-2212 (Bi2Sr2CaCu2O8) system can enhance the superconducting critical parameters. These results are explained on the basis of possible improved inter- and intra-granular properties with Pb substitution in Bi2−xPbxSr2CaCu2O8 system.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Springer Verlag.
Subjects: Physics
Depositing User: Ms Neetu Chandra
Date Deposited: 09 Jul 2012 07:21
Last Modified: 09 Jul 2012 07:21
URI: http://npl.csircentral.net/id/eprint/306

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