TITLE

Preparation of oriented Bi-Ca-Sr-Cu-O thin films using pulsed laser deposition

AUTHOR(S)
Fork, D. K.; Boyce, J. B.; Ponce, F. A.; Johnson, R. I.; Anderson, G. B.; Connell, G. A. N.; Eom, C. B.; Geballe, T. H.
PUB. DATE
July 1988
SOURCE
Applied Physics Letters;7/25/1988, Vol. 53 Issue 4, p337
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Oriented c-axis thin films of Bi-Ca-Sr-Cu-O on [100] SrTiO3 substrates have been fabricated using the pulsed excimer laser evaporation technique. Deposition at room temperature in 1 mTorr oxygen followed by an 875 °C anneal in oxygen yields superconducting films with zero resistance at 80 K and a resistivity drop near 110 K, hinting at the presence of another superconducting phase. Transmission electron microscopy shows that the films are epitaxial with the substrate, with an abrupt and planar interface boundary. The observed crystal structure is consistent with diffraction results on bulk materials.
ACCESSION #
9827494

 

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