Heteroepitaxy of high-Tc superconducting TlBaCaCuO films on metal-coated substrates

D. L. Schulz, D. S. Richeson, G. Malandrino, D. Neumayer, Tobin J Marks, D. C. DeGroot, J. L. Schindler, T. Hogan, C. R. Kannewurf

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Superconducting TlBaCaCuO thin films have been successfully grown on gold-coated oxide substrates (yttria-stabilized zirconia (YSZ)) using a combination of metal-to-organic chemical vapor deposition (MOCVD) and Tl vapor diffusion. BaCaCuO films are first prepared by MOCVD using "second-generation" precursors with improved thermal stability and volatility. Thallium is then incorporated into these films by annealing in the presence of a mixture of oxides (Tl2O3, BaO, CaO and CuO) of a specific composition. The resultant films consists predominantly of single-phase Tl2Ba2CaCu2Ox superconductor with preferential orientation of the crystallite c-axes perpendicular to the substrate surface. A magnetically determined Tc value of about 95 K for Tl2Ba2CaCu2Ox on Au/YSZ compares well with a transport Tc value of 94 K. Attempts to form superconductors on platinum-coated oxide substrates (MgO) led to the formation of a PtTlO phase.

Original languageEnglish
Pages (from-to)45-48
Number of pages4
JournalThin Solid Films
Volume216
Issue number1
DOIs
Publication statusPublished - Aug 28 1992

Fingerprint

Superconducting films
superconducting films
Epitaxial growth
Oxides
Organic Chemicals
Metals
Yttria stabilized zirconia
Organic chemicals
yttria-stabilized zirconia
Superconducting materials
Chemical vapor deposition
Substrates
platinum oxides
vapor deposition
metals
Thallium
oxides
volatility
thallium
Platinum

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Schulz, D. L., Richeson, D. S., Malandrino, G., Neumayer, D., Marks, T. J., DeGroot, D. C., ... Kannewurf, C. R. (1992). Heteroepitaxy of high-Tc superconducting TlBaCaCuO films on metal-coated substrates. Thin Solid Films, 216(1), 45-48. https://doi.org/10.1016/0040-6090(92)90867-B

Heteroepitaxy of high-Tc superconducting TlBaCaCuO films on metal-coated substrates. / Schulz, D. L.; Richeson, D. S.; Malandrino, G.; Neumayer, D.; Marks, Tobin J; DeGroot, D. C.; Schindler, J. L.; Hogan, T.; Kannewurf, C. R.

In: Thin Solid Films, Vol. 216, No. 1, 28.08.1992, p. 45-48.

Research output: Contribution to journalArticle

Schulz, DL, Richeson, DS, Malandrino, G, Neumayer, D, Marks, TJ, DeGroot, DC, Schindler, JL, Hogan, T & Kannewurf, CR 1992, 'Heteroepitaxy of high-Tc superconducting TlBaCaCuO films on metal-coated substrates', Thin Solid Films, vol. 216, no. 1, pp. 45-48. https://doi.org/10.1016/0040-6090(92)90867-B
Schulz, D. L. ; Richeson, D. S. ; Malandrino, G. ; Neumayer, D. ; Marks, Tobin J ; DeGroot, D. C. ; Schindler, J. L. ; Hogan, T. ; Kannewurf, C. R. / Heteroepitaxy of high-Tc superconducting TlBaCaCuO films on metal-coated substrates. In: Thin Solid Films. 1992 ; Vol. 216, No. 1. pp. 45-48.
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