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Off-Axis Growth of Y1Ba2Cu3O7-y on Different Substrates

Published online by Cambridge University Press:  26 February 2011

P. R. Broussard ,
V. C. Cestone ,
Laura H. Allen  and
M. E. Reeves
P. R. Broussard
Affiliation:
Naval Research Lab. Washington, DC 20375
V. C. Cestone
Affiliation:
Naval Research Lab. Washington, DC 20375
Laura H. Allen
Affiliation:
Naval Research Lab. Washington, DC 20375
M. E. Reeves
Affiliation:
Naval Research Lab. Washington, DC 20375
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Abstract

Films of Y1Ba2Cu3O7-y have been grown by off-axis DC sputtering onto substrates of (100) SrTiO3. LaAlO, LaGaO3, Yttria-stabilized Zirconia, and MgO. Our best films, grown on SrTiO3 substrates at a temperature of 650°C and a sputtering pressure of 100 mTorr (consisting of 80 mTorr Ar and 20 mTorr O2) have room temperature resistivities of 280 μΩ-cm, an inductive Tcof 88 K and an inductive Jc 'Sof∼ 2.6 × 106 A/cm2 at 77 K and 3.9 × 107 A/cm2at 4.2 K. Films grown on YSZ tend to have higher resistivities (∼ 600 μΩ-cm) but still have Tc's of 86 K and Jc's of - 106 A/cm2 at 77 K. Films down to 550 Å still have Tc's of 86 K and Jc's at 77 K > 106 A/cm2. Films grown at lower temperatures (600°C) on S1TiO3 begin to show a-axis growth, but the superconducting properties deteriorate.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 275: Symposium S – Layered Superconductors: Fabrication, Properties and Applications , 1992 , 507
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

1. Ciaassen, J. H., Reeves, M. E., and Soulen, R. J. Jr, Rev. Sci. Instrum. 62, 996(1991).Google Scholar
2. Ekln, J. W., Appl. Phys. Lett. 55, 905(1989).Google Scholar
3. Tlnkham, M., Introduction to Superconductivity, (Robert E. Krieger Publishing Company, New York, 1980), p. 117.Google Scholar
4. Deutscher, G. and Müller, K. A., Phys. Rev. Lett, 59, 1745(1987).Google Scholar
5. Eom, C. B., Marshall, A. F., Laderman, S. S., Jacowitz, R. D., and Geballe, T. H., Science 249. 1549 (1990).Google Scholar
6. Handbook of X-ray Photoelectron Spectroscopv, edited by Muilenberg, G. E. (Perkin-Elmer Corporation, Minnesota, 1979)Google Scholar