Highly enhanced superconducting properti
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P.M. Sarun; R. Shabna; S. Vinu; A. Biju; U. Syamaprasad
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Article
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2009
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Elsevier Science
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English
β 752 KB
The effects of Y and Pb co-doping on phase evolution, microstructure, electrical and superconducting properties of Bi-2212 have been studied. The results show that Y 3+ ions enter into the crystal structure by replacing Ca 2+ and/or Sr 2+ ions, and hence reduce hole concentration in the electronic s