TITLE

Preparation of superconducting YBa2Cu3Ox thin films by oxygen annealing of multilayer metal films

AUTHOR(S)
Tsaur, B-Y.; DiIorio, M. S.; Strauss, A. J.
PUB. DATE
September 1987
SOURCE
Applied Physics Letters;9/14/1987, Vol. 51 Issue 11, p858
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Superconducting thin films consisting predominantly of YBa2Cu3Ox have been prepared by oxygen annealing of metal films formed by using electron beam evaporation to deposit a three-layer sequence of Cu, Ba, and Y in nominally stoichiometric proportions, then repeating the sequence five times. For the best superconducting films, which were prepared on yttria-stabilized cubic zirconia substrates, the onset of superconductivity occurred at 94 K and zero resistivity was observed at 72 K. For the best films prepared on sapphire substrates, the corresponding temperatures were 95 and 40 K.
ACCESSION #
9824163

 

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