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

D. K. Fork, J. B. Boyce, F. A. Ponce, R. I. Johnson, G. B. Anderson, G. A.N. Connell, C. B. Eom, T. H. Geballe

Research output: Contribution to journalArticle

68 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)337-339
Number of pages3
JournalApplied Physics Letters
Volume53
Issue number4
DOIs
StatePublished - Dec 1 1988

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    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. (1988). Preparation of oriented Bi-Ca-Sr-Cu-O thin films using pulsed laser deposition. Applied Physics Letters, 53(4), 337-339. https://doi.org/10.1063/1.99909