Strong correlated pinning at high growth rates in YBa2Cu3O7−x thin films with Ba2YNbO6 additions

In pulsed laser deposited YBa2Cu3O7−x thin films containing 5 mol. % Ba2YNbO6 pinning additions, we show that a growth rate of 1 nm/s (10 Hz laser repetition rate with an instant rate ∼0.1 nm/pulse) gives remarkably strong c-axis correlated pinning which is associated with the presence of Ba2YNbO6 n...

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Bibliographic Details
Published inJournal of applied physics Vol. 116; no. 3
Main Authors Ercolano, G., Bianchetti, M., Sahonta, S.-L., Kursumovic, A., Lee, J. H., Wang, H., MacManus-Driscoll, J. L.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 21.07.2014
Subjects
Applied physics
Conductors
Nanoparticles
Pinning
Pulsed laser deposition
Pulsed lasers
Thin films
YBCO superconductors
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Summary:In pulsed laser deposited YBa2Cu3O7−x thin films containing 5 mol. % Ba2YNbO6 pinning additions, we show that a growth rate of 1 nm/s (10 Hz laser repetition rate with an instant rate ∼0.1 nm/pulse) gives remarkably strong c-axis correlated pinning which is associated with the presence of Ba2YNbO6 nanocolumns. This is different to the behaviour of other well-studied pinning additions where only random nanoparticles of the pinning phase are present at high growth rates and is an important finding for industrial fabrication of coated conductors where fast growth is required.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4890459