Superconducting Properties of BiPbSrCsCuO and BiSrCaCuO Glass-Ceramics
W. Millera, K. Borówkoa, M. Gazdaa, S. Stizzab and R. Natalib
aFaculty of Applied Physics and Mathematics, Gdańsk University of Technology, Narutowicza 11/12, 80-952 Gdańsk, Poland
bDipartimento di Matematica e Fisica, Università di Camerino, INFM, Italia
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Received: 25 09 2005;
In this work we study the main differences between the superconducting properties of the Bi4Sr3Ca3Cu4Ox and (Bi0.8Pb0.2)4Sr3Ca3Cu4Ox glass-ceramics. The Bi4Sr3Ca3Cu4Ox and (Bi0.8Pb0.2)4Sr3Ca3Cu4Ox glass-ceramics prepared in the same conditions contain similar amounts of the superconducting 2212 phase, however their superconducting and normal-state electrical properties differ significantly. The main reason which makes BiSrCaCuO glass-ceramics worse superconductor than BiPbSrCaCuO is its microstructure.
DOI: 10.12693/APhysPolA.109.627
PACS numbers: 74.72.Hs, 72.80.Ng