uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Interlayer structure in YBCO-coated conductors prepared by chemical solution deposition
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Show others and affiliations
2013 (English)In: Superconductors Science and Technology, ISSN 0953-2048, E-ISSN 1361-6668, Vol. 26, no 7, 075016- p.Article in journal (Refereed) Published
Abstract [en]

The functionality of YBa2Cu3O7-delta (YBCO)-coated conductor technology depends on the reliability and microstructural properties of a given tape or wire architecture. Particularly, the interface to the metal tape is of interest since it determines the adhesion, mechanical stability of the film and thermal contact of the film to the substrate. A trifluoroacetate (TFA)-metal organic deposition (MOD) prepared YBCO film deposited on a chemical solution-derived buffer layer architecture based on CeO2/La2Zr2O7 and grown on a flexible Ni5 at.% W substrate with a {100} < 001 > biaxial texture was investigated. The YBCO film had a thickness was 440 nm and a j(c) of 1.02 MA cm(-2) was determined at 77 K and zero external field. We present a sub-nanoscale analysis of a fully processed solution-derived YBCO-coated conductor by aberration-corrected scanning transmission electron microscopy (STEM) combined with electron energy-loss spectroscopy (EELS). For the first time, structural and chemical analysis of the valence has been carried out on the sub-nm scale. Intermixing of Ni, La, Ce, O and Ba takes place at these interfaces and gives rise to nanometer-sized interlayers which are a by-product of the sequential annealing process. Two distinct interfacial regions were analyzed in detail: (i) the YBCO/CeO2/La2Zr2O7 region (10 nm interlayer) and (ii) the La2Zr2O7/Ni-5 at.% W substrate interface region (20 nm NiO). This is of particular significance for the functionality of these YBCO-coated conductor architectures grown by chemical solution deposition.

Place, publisher, year, edition, pages
2013. Vol. 26, no 7, 075016- p.
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Materials Science
URN: urn:nbn:se:uu:diva-204103DOI: 10.1088/0953-2048/26/7/075016ISI: 000319973800024OAI: oai:DiVA.org:uu-204103DiVA: diva2:637845
Available from: 2013-07-23 Created: 2013-07-22 Last updated: 2014-01-31Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Thersleff, Thomas
By organisation
Applied Materials Sciences
In the same journal
Superconductors Science and Technology
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 369 hits
ReferencesLink to record
Permanent link

Direct link