Possible presence of 2234 phase with T c(zero) of 95 K in a Bi-Pb-Sb-Sr-Ca-Cu-O ceramic
- 13 August 1990
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 57 (7) , 710-711
- https://doi.org/10.1063/1.104286
Abstract
Samples of Bi1.84Pb0.34Sb0.1Sr2Ca2Cu3Oy ceramic were prepared by a direct sintering and air quenching method. A new phase with Tc(zero) of 95 K is detected inside multiphased samples by resistivity and susceptibility measurements. Powder x‐ray diffraction analysis indicates that the structure is orthorhombic with cell parameters a=5.41 Å, b=5.44 Å, c=43.35 Å. The (Bi, Pb)2Sr2Ca3Cu4Oy composition is determined by x‐ray energy dispersion analysis.Keywords
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