TITLE

Two-dimensional superstructure in the (001) plane of Bi2[Ca,Sr]3Cu2O8+δ thin films

AUTHOR(S)
Marshall, A. F.; Oh, B.; Spielman, S.; Lee, Mark; Eom, C. B.; Barton, R. W.; Hammond, R. H.; Kapitulnik, A.; Beasley, M. R.; Geballe, T. H.
PUB. DATE
August 1988
SOURCE
Applied Physics Letters;8/1/1988, Vol. 53 Issue 5, p426
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Thin films of Bi-Ca-Sr-Cu-O showing superconductivity above 100 K have been made by electron beam evaporation with oxygen post-annealing. The major superconducting phase, Bi2[Ca,Sr]3Cu2O8+δ (Tc ∼85 K), is oriented epitaxially with the (100)SrTiO3 substrate. In addition to the one-dimensional incommensurate superstructure along the b axis, which is characteristic of this phase, we have observed by transmission electron microscopy a two-dimensional incommensurate superstructure in the a-b plane with a different periodicity and a different orientation relationship to the subcell.
ACCESSION #
9827577

 

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