Formation conditions of the (2223) phase in lead-substituted superconducting ceramics BiSrCaCuO

On the basis of systematic investigation we specify the thermal conditions leading to zero resistance at about 105K in ceramics of starting composition Bi 1.8Pb 0.2Sr 2Ca 2Cu 3O 10. Though the required T c is reproducibly obtained, the proportion of the (2223) phase never exceeds 20%. We have assign...

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Bibliographic Details
Published in:Solid state communications 1989-02, Vol.69 (5), p.499-502
Main Authors: Pierre, L., Morin, D., Schneck, J., Tolédano, J.C., Primot, J., Daguet, C., Glas, F., Etrillard, J., Savary, H.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Physics
Properties of type I and type II superconductors
Superconductivity
Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)
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Summary:On the basis of systematic investigation we specify the thermal conditions leading to zero resistance at about 105K in ceramics of starting composition Bi 1.8Pb 0.2Sr 2Ca 2Cu 3O 10. Though the required T c is reproducibly obtained, the proportion of the (2223) phase never exceeds 20%. We have assigned the diffraction lines of the latter phase and shown that it has long range order, in contrast with previous results.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(89)90228-7