Organometallic chemical vapor deposition routes to high Tc superconducting Tl-Ba-Ca-Cu-O films

Darrin S. Richeson, Lauren M. Tonge, Jing Zhao, Jiming Zhang, Henry O. Marcy, Tobin J Marks, Bruce W. Wessels, Carl R. Kannewurf

Research output: Contribution to journalArticle

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Abstract

Films of the Tl-Ba-Ca-Cu-O high Tc superconductor can be prepared by either of two organometallic chemical vapor deposition routes. Ba-Ca-Cu-O films are first prepared on yttria-stabilized zirconia using the volatile precursors Ba(heptafluorodimethyloctanedionate)2, Ca(dipivaloylmethanate)2, and Cu(acetylacetonate)2. Deposition is carried out at 5 Torr pressure with argon as the carrier gas and water vapor as the reactant gas. Thallium is next incorporated in these films either by vapor diffusion using bulk Tl-Ba-Ca-Cu-O as the source, or by organometallic chemical vapor deposition using Tl(cyclopentadienide) as the source. The latter deposition is carried out at atmospheric pressure with an argon carrier and water-saturated oxygen reactant, followed by rapid thermal annealing. Both types of films consist primarily of the TlBa2Ca2Cu 3Ox phase, have preferential orientation of the CuO planes parallel to the substrate surface, and exhibit onset of superconductivity at ∼120 K with zero resistance by 100 K.

Original languageEnglish
Pages (from-to)2154-2156
Number of pages3
JournalApplied Physics Letters
Volume54
Issue number21
DOIs
Publication statusPublished - 1989

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routes
vapor deposition
argon
vapors
thallium
yttria-stabilized zirconia
gases
water vapor
atmospheric pressure
superconductivity
annealing
oxygen
water

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Richeson, D. S., Tonge, L. M., Zhao, J., Zhang, J., Marcy, H. O., Marks, T. J., ... Kannewurf, C. R. (1989). Organometallic chemical vapor deposition routes to high Tc superconducting Tl-Ba-Ca-Cu-O films. Applied Physics Letters, 54(21), 2154-2156. https://doi.org/10.1063/1.101515

Organometallic chemical vapor deposition routes to high Tc superconducting Tl-Ba-Ca-Cu-O films. / Richeson, Darrin S.; Tonge, Lauren M.; Zhao, Jing; Zhang, Jiming; Marcy, Henry O.; Marks, Tobin J; Wessels, Bruce W.; Kannewurf, Carl R.

In: Applied Physics Letters, Vol. 54, No. 21, 1989, p. 2154-2156.

Research output: Contribution to journalArticle

Richeson, DS, Tonge, LM, Zhao, J, Zhang, J, Marcy, HO, Marks, TJ, Wessels, BW & Kannewurf, CR 1989, 'Organometallic chemical vapor deposition routes to high Tc superconducting Tl-Ba-Ca-Cu-O films', Applied Physics Letters, vol. 54, no. 21, pp. 2154-2156. https://doi.org/10.1063/1.101515
Richeson, Darrin S. ; Tonge, Lauren M. ; Zhao, Jing ; Zhang, Jiming ; Marcy, Henry O. ; Marks, Tobin J ; Wessels, Bruce W. ; Kannewurf, Carl R. / Organometallic chemical vapor deposition routes to high Tc superconducting Tl-Ba-Ca-Cu-O films. In: Applied Physics Letters. 1989 ; Vol. 54, No. 21. pp. 2154-2156.
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