Substitution effects of yttrium in the BISCCO (2212) system

Structural, magnetic and superconducting properties are studied in the Bi 2 Sr 2 Ca 1− x Y x Cu 2 O 8+ δ system. The samples have shown a single phase Bi 2Sr 2CaCu 2O 8+δ structure. The highest T c, 93.5 K, is observed in the x = 0.1 composition, with a decrease in T c for x up to 0.3 concentration....

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Bibliographic Details
Published in:Materials chemistry and physics 1993, Vol.33 (1), p.58-62
Main Authors: Narsaiah, E.Laxmi, Rao, U.V.Subba, Peña, O., Sergent, M.
Format: Article
Language:English
Subjects:
Bi-based cuprates
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cuprates superconductors (high tc and insulating parent compounds)
Exact sciences and technology
High-Tc compounds
Physics
Superconductivity
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Summary:Structural, magnetic and superconducting properties are studied in the Bi 2 Sr 2 Ca 1− x Y x Cu 2 O 8+ δ system. The samples have shown a single phase Bi 2Sr 2CaCu 2O 8+δ structure. The highest T c, 93.5 K, is observed in the x = 0.1 composition, with a decrease in T c for x up to 0.3 concentration. Superconductivity disappears in the samples with x>0.5. A sharp peak at 13 K is observed in the d.c. susceptibility measurements of the x = 1.0 sample, which is attributed to a Y 2Cu 2O 5 impurity.
ISSN:0254-0584
1879-3312
DOI:10.1016/0254-0584(93)90090-9