Superconducting Tl-Ba-Ca-Cu-O films by sputtering

M. Hong, S. H. Liou, D. D. Bacon, G. S. Grader, J. Kwo, A. R. Kortan, B. A. Davidson

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38 Scopus citations

Abstract

Superconducting Tl-Ba-Ca-Cu-O thin films 0.2-1.0 μm thick have been prepared on MgO(100) and SrTiO3(100) substrates by dc diode sputtering using a single oxide target. Films containing primarily the Tl 2Ba2Ca1Cu2O8 phase were obtained with a Tc (R=0) at 102 K and a transport Jc of 104 A/cm2 at 90 K. For the nearly pure phase Tl 2Ba2Ca2Cu3O10 films, the Tc's (R=0) are higher at 116 K and the transport J c's at 100 K are of 105 A/cm2. Both types of films show a strong preferred orientation with the c axis perpendicular to the film plane. The rocking curve of the Tl2Ba2Ca 2Cu3O10 films is 0.32°wide and the typical grain size is over 10 μm.

Original languageEnglish (US)
Pages (from-to)2102-2104
Number of pages3
JournalApplied Physics Letters
Volume53
Issue number21
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Hong, M., Liou, S. H., Bacon, D. D., Grader, G. S., Kwo, J., Kortan, A. R., & Davidson, B. A. (1988). Superconducting Tl-Ba-Ca-Cu-O films by sputtering. Applied Physics Letters, 53(21), 2102-2104. https://doi.org/10.1063/1.100501