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Title: Hrem investigation of (110) oriented yba2cu3o7 thin-films deposited on (110) srtio3 substrates
Authors: Seo, Jin Won ×
Kabius, B.
Jia, C.
Soltner, H.
Poppe, U.
Urban, K. #
Issue Date: May-1994
Publisher: Elsevier science bv
Series Title: Physica c vol:225 issue:1-2 pages:158-166
Abstract: The epitaxial growth and microstructure of YBa2Cu3O7 thin films on (110) SrTiO3 substrates was investigated by high-resolution electron microscopy. The single thin films and heterostructures with PrBa2Cu3O7 and SrTiO3 separating the superconductor layers were deposited by DC sputtering. All layers were grown with the [110] direction perpendicular to the substrate surface with the c-axis of the YBa2Cu3O7 film oriented parallel to the [001] direction of the substrate. Resistance measurements showed that, by applying a template growth procedure, T(c) values of up to 85 K can be obtained. Stacking faults were found to be the dominant defect type in the superconducting film. A structural model for a novel type of these defects inducing a local 2-3-5 cation stoichiometry was deduced by comparison between experimental and simulated high-resolution images. Antiphase boundaries with a habit plane close to the (110) plane of YBa2Cu3O7 were detected.
ISSN: 0921-4534
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physical Metallurgy and Materials Engineering Section (-)
× corresponding author
# (joint) last author

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