TITLE

Superconductivity in the Bi-Sr-Ca-Cu-O compounds with noble metal additions

AUTHOR(S)
Jin, S.; Sherwood, R. C.; Tiefel, T. H.; Kammlott, G. W.; Fastnacht, R. A.; Davis, M. E.; Zahurak, S. M.
PUB. DATE
May 1988
SOURCE
Applied Physics Letters;5/9/1988, Vol. 52 Issue 19, p1628
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The Bi-Sr-Ca-Cu-O superconductors have been doped with various noble metals and their superconducting properties have been investigated. The resistivity and magnetic susceptibility measurements on sintered Bi4Sr3Ca2Cu4O16+x containing 20% by weight of Au, Ag, or Pt-group metals indicate that Au and the Pt-group metals significantly suppress or eliminate the superconducting transition in Bi-Sr-Ca-Cu-O. Only Ag is found to be benign, maintaining both the 115 and 85 K transitions in the compound. This nonpoisoning behavior of silver is of significant technical importance because of the need for a proper stabilizing normal metal for composite superconductor wire, nonreactive crucible materials for melt processing or crystal growth, and suitable nonpoisonous substrates or barriers for thin- or thick-film superconducting devices.
ACCESSION #
9826736

 

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