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Superconductivity above 90 K in low Tcphase Bi2Ca1Sr2Cu2Ox

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Volume
160
Identifiers
DOI: 10.1016/0921-4534(89)90062-2

Abstract

Abstract Superconductivity in the low T c Bi-based 2-1-2-2 cuprate has been studied as a function of processing parameters. T c( R=0) above 91 K has been realized through the optimization of process conditions. XRD of the samples indicate subtle changes in respect of intensity and splitting of certain peaks. The results are compared with those on Bi-based 2-2-2-3 and Y-based 1-2-3 cuprates. The enhanced T c and the reduced δT c of the 2-1-2-2 compound have been suggested to be the consequence of improved atomic ordering and orthorhombicity.

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