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Epitaxy of Y-Ba-Cu-O thin films grown on single-crystal MgO

Publication Type

Journal Article

Authors

Ramesh, Ramamoorthy, D. Hwang, T.S. Ravi, A. Inam, J.B. Barner, L. Nazar, S.W. Chan, C.Y. Chen, B. Dutta, T. Venkatesan, X.D. Wu

DOI

10.1063/1.102932

Abstract

The epitaxy of a thin-film Y-Ba-Cu-O (YBCO) superconductor deposited on a single-crystal [001] MgO substrate was examined by transmission electron microscopy. The large lattice mismatch (8-10%) in the basal plane of YBCO and MgO is accommodated mainly by the formation of a polycrystalline, mosaic structure. The grain boundaries correspond to unique crystallographic interfaces, determined by the crystal symmetry of the substrate and the thin film.

Journal

Applied Physics Letters

Volume

Year of Publication

1990

ISSN

00036951

Notes

cited By 92

Research Areas

Ramesh Lab