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Novel understanding of the YBa2Cu3O7–x thin film growth

Published online by Cambridge University Press:  31 January 2011

D. X. Huang ,
Y. Nakamura ,
Y. Yamada  and
I. Hirabayshi
D. X. Huang*
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), 2–4–1 Mutsuno, Atsuta-ku, Nagoya 456–8587, Japan
Y. Nakamura
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), 2–4–1 Mutsuno, Atsuta-ku, Nagoya 456–8587, Japan
Y. Yamada
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), 2–4–1 Mutsuno, Atsuta-ku, Nagoya 456–8587, Japan
I. Hirabayshi
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), 2–4–1 Mutsuno, Atsuta-ku, Nagoya 456–8587, Japan
*
a) Address all correspondence to this author. E-mail: dxhuang@iname.com
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Abstract

By combining the cross-sectional observation of the randomly oriented film areas and the analyses of the film microstructural influence by the substrate-surface morphology, we achieved a novel understanding of the YBa2Cu3O7–x (YBCO) thin film growth process, which leads to an explanation of different microstructures formed in YBCO thin films. Selective and competitive growth of YBa2Cu3O7–x and Ba–Cu–O/Cu–O was found to occur in the whole film growth process depending on the local surface roughness in which the interfacial energy played a controlling role.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 2 , February 2002 , pp. 302 - 305
Copyright
Copyright © Materials Research Society 2002

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References

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