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Heteroepitaxial growth of DYBa2Cu3O7−x/Dy2O3 multilayers analyzed by TEM

Published online by Cambridge University Press:  29 June 2016

Y.J. Zhang ,
K.M. Beauchamp ,
B.R. Johnson ,
T. Wang ,
A.M. Goldman  and
M. L. Mecartney
Y.J. Zhang
Affiliation:
Center for the Science and Application of Superconductivity, University of Minnesota, Minneapolis, Minnesota 55455
K.M. Beauchamp
Affiliation:
Center for the Science and Application of Superconductivity, University of Minnesota, Minneapolis, Minnesota 55455
B.R. Johnson
Affiliation:
Center for the Science and Application of Superconductivity, University of Minnesota, Minneapolis, Minnesota 55455
T. Wang
Affiliation:
Center for the Science and Application of Superconductivity, University of Minnesota, Minneapolis, Minnesota 55455
A.M. Goldman
Affiliation:
Center for the Science and Application of Superconductivity, University of Minnesota, Minneapolis, Minnesota 55455
M. L. Mecartney
Affiliation:
Center for the Science and Application of Superconductivity, University of Minnesota, Minneapolis, Minnesota 55455
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Abstract

Layered structures of DyBa2Cu3O7−x and Dy2O3 grown on (100) and (110) oriented SrTiO3 have been examined in cross section by transmission electron microscopy and energy dispersive spectroscopy to determine the feasibility of fabricating tunnel junctions with these materials. DyBa2Cu3O7−x and Dy2O3 exhibit a clear epitaxial relationship, resulting in heteroepitaxial growth of DyBa2Cu3O7−x on Dy2O3. The interfaces between DyBa2Cu3O7−x and Dy2O3 are structurally sharp, but interdiffusion between the chemical constituents occurs. Nevertheless, these results are a strong indication that high quality high-Tc superconductor tunneling junctions can be fabricated in this system.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 1 , January 1992 , pp. 29 - 33
Copyright
Copyright © Materials Research Society 1992

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References

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