A1 Refereed original research article in a scientific journal
Influence of Rare-Earth Variations on the Superconducting Properties of YBCO Films With and Without Artificial Pinning Centers
Authors: Aye, Moe Moe; Mejia, Samuel; Huhtinen, Hannu; Paturi, Petriina
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Publication year: 2026
Journal: IEEE Transactions on Applied Superconductivity
Article number: 8000805
Volume: 36
Issue: 5
ISSN: 1051-8223
eISSN: 2378-7074
DOI: https://doi.org/10.1109/TASC.2026.3666832
Publication's open availability at the time of reporting: Open Access
Publication channel's open availability : Partially Open Access publication channel
Web address : https://doi.org/10.1109/tasc.2026.3666832
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/515815818
Self-archived copy's licence: CC BY
Self-archived copy's version: Publisher`s PDF
Thin films of Y1−xGdxBa 2Cu3O7−δ (x = 0, 1/3, 1/2, 2/3, 1), with and without BaZrO3 (BZO) artificial pinning centers (APCs), were deposited by pulsed laser deposition (PLD) under growth parameters identical to those used for YBa2Cu3O7−δ. The effects of partial Gd substitution on the critical current density Jc were systematically investigated and the results were found to differ between APC-free and BZO-doped films. Partial substitution of Y by Gd significantly enhanced Jc, particularly in films containing BZO nanorods. At 10 K, the x = 2/3 film with APC showed Jc enhancements up to 45% over the x = 0 film across a wide magnetic field and temperature range. These findings strongly support Gd doping in YBCO as a highly promising route for future applications requiring maximized magnetic-field-dependent critical current densities.
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Funding information in the publication:
This work was supported by Jenny and Antti Wihuri Foundation.
