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High pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defects

Barium zirconate; Epitaxial growth; Flux pinning; High resolution transmission electron microscopy; Magnesia; Nanorods; Pulsed laser deposition; Scanning electron microscopy; Strontium titanates; Superconducting films; Titanium compounds; Transmission electron microscopy; Vortex flow; Yttrium barium...

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Main Authors: Mele P., Guzman R., Gazquez J., Puig T., Obradors X., Saini S., Yoshida Y., Mukaida M., Ichinose A., Matsumoto K., Idries Adam M.
Other Authors: 7006788040
Format: Article
Published: Institute of Physics Publishing 2023
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spelling my.uniten.dspace-224172023-05-29T14:00:51Z High pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defects Mele P. Guzman R. Gazquez J. Puig T. Obradors X. Saini S. Yoshida Y. Mukaida M. Ichinose A. Matsumoto K. Idries Adam M. 7006788040 7103206526 10142259700 7006729760 7102460091 35278696500 35402531800 7005127222 7103169719 8059497400 56483192800 Barium zirconate; Epitaxial growth; Flux pinning; High resolution transmission electron microscopy; Magnesia; Nanorods; Pulsed laser deposition; Scanning electron microscopy; Strontium titanates; Superconducting films; Titanium compounds; Transmission electron microscopy; Vortex flow; Yttrium barium copper oxides; Applied magnetic fields; Artificial pinning centers; isotropic pinning; Scanning transmission electron microscopy; Single vortices; Superconducting critical temperatures; Superconducting properties; YBCO film; Copper compounds We report the epitaxial growth and superconducting properties of Y2O3-added YBa2Cu3Ox (YBCO) films grown on SrTiO3-buffered MgO substrates by pulsed-laser deposition using surface-modified YBCO targets. Areas of Y2O3 sectors on the YBCO target were increased to 5.44% and 9.22% of the total YBCO pellet in order to find a correlation between the Y2O3 content, morphology, and the pinning properties of YBCO+Y2O3 mixed films. The maximum global pinning forces, FP, at 77 K were 14.3 GN m-3 and 1.15 GN m-3 for the Y2O3 5.44A% and 9.22A%, respectively. The 5.44A% Y2O3-added sample presents a very high value of pinning force at 77 K, approaching the value obtained in YBCO films with added BaZrO3 nanorods, but with less depression in the superconducting critical temperature, Tc. In accordance with scanning transmission electron microscopy (STEM) observations, both films present nanoparticulate Y2O3 dispersed in a YBCO matrix where Y2Ba4Cu8O16 (Y248) intergrowths were also observed. Consistent with the strong pinning theory, the size and distribution of randomly dispersed Y2O3 particles are optimal for the flux pinning of a 5.44A% Y2O3-YBCO film, while in the case of a 9.22A% film, the YBCO matrix is degraded by jam-packed Y248 intergrowth, which leads to a comparatively poor pinning performance. We further used the single-vortex dynamics model to account for vortex pinning in the samples. The 5.44A% Y2O3-YBCO film result shows good agreement with the model fit up to 4 T of the applied magnetic field. � 2015 IOP Publishing Ltd. Final 2023-05-29T06:00:51Z 2023-05-29T06:00:51Z 2015 Article 10.1088/0953-2048/28/2/024002 2-s2.0-84921033473 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921033473&doi=10.1088%2f0953-2048%2f28%2f2%2f024002&partnerID=40&md5=4ff76320a3013b521f697d80b37c301c https://irepository.uniten.edu.my/handle/123456789/22417 28 2 24002 All Open Access, Green Institute of Physics Publishing Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Barium zirconate; Epitaxial growth; Flux pinning; High resolution transmission electron microscopy; Magnesia; Nanorods; Pulsed laser deposition; Scanning electron microscopy; Strontium titanates; Superconducting films; Titanium compounds; Transmission electron microscopy; Vortex flow; Yttrium barium copper oxides; Applied magnetic fields; Artificial pinning centers; isotropic pinning; Scanning transmission electron microscopy; Single vortices; Superconducting critical temperatures; Superconducting properties; YBCO film; Copper compounds
author2 7006788040
author_facet 7006788040
Mele P.
Guzman R.
Gazquez J.
Puig T.
Obradors X.
Saini S.
Yoshida Y.
Mukaida M.
Ichinose A.
Matsumoto K.
Idries Adam M.
format Article
author Mele P.
Guzman R.
Gazquez J.
Puig T.
Obradors X.
Saini S.
Yoshida Y.
Mukaida M.
Ichinose A.
Matsumoto K.
Idries Adam M.
spellingShingle Mele P.
Guzman R.
Gazquez J.
Puig T.
Obradors X.
Saini S.
Yoshida Y.
Mukaida M.
Ichinose A.
Matsumoto K.
Idries Adam M.
High pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defects
author_sort Mele P.
title High pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defects
title_short High pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defects
title_full High pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defects
title_fullStr High pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defects
title_full_unstemmed High pinning performance of YBa2Cu3O7-x films added with Y2O3 nanoparticulate defects
title_sort high pinning performance of yba2cu3o7-x films added with y2o3 nanoparticulate defects
publisher Institute of Physics Publishing
publishDate 2023
_version_ 1806427890446761984
score 13.223943

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