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Textures of laser ablated superconducting thin films of YBa2Cu3O7−δ as a function of deposition temperature

Published online by Cambridge University Press:  31 January 2011

F. Heidelbach ,
H-R. Wenk ,
R.E. Muenchausen ,
S. Foltyn ,
N. Nogar  and
A.D. Rollett
F. Heidelbach
Affiliation:
Department of Geology and Geophysics, University of California, Berkeley, California 94720, and Center for Materials Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
H-R. Wenk
Affiliation:
Department of Geology and Geophysics, University of California, Berkeley, California 94720, and Center for Materials Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
R.E. Muenchausen
Affiliation:
Exploratory Research & Development Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
S. Foltyn
Affiliation:
Exploratory Research & Development Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
N. Nogar
Affiliation:
Exploratory Research & Development Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
A.D. Rollett
Affiliation:
Materials Science & Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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Abstract

The preferred orientation of a series of laser deposited superconducting thin films of YBa2Cu3O7−δ on LaAlO3 substrate has been examined. X-ray measurements (pole figures, χ-scans, ω-scans, rocking curves) reveal an increasingly strong preferred orientation of the polycrystalline material with c-axes perpendicular to the substrate surface as deposition temperature increases. At low temperatures c-axes are predominantly parallel to the substrate surface. Characteristic parameters of the texture types were derived from those measurements. With higher temperatures twinning on (110) was observed. The different texture types are interpreted in terms of a layered film structure.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 3 , March 1992 , pp. 549 - 557
Copyright
Copyright © Materials Research Society 1992

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