Refereed journal article or data article (A1)

Enhanced critical current density in optimized high-temperature superconducting bilayer thin films




List of AuthorsRivasto Elmeri, Aye Moe, Huhtinen Hannu, Paturi Petriina

PublisherIOP Publishing Ltd

PlaceBRISTOL

Publication year2024

JournalJournal of Physics: Condensed Matter

Journal name in sourceJOURNAL OF PHYSICS-CONDENSED MATTER

Journal acronymJ PHYS-CONDENS MAT

Article number 135702

Volume number36

Issue number13

Number of pages9

ISSN0953-8984

eISSN1361-648X

DOIhttp://dx.doi.org/10.1088/1361-648X/ad162c

URLhttps://iopscience.iop.org/article/10.1088/1361-648X/ad162c


Abstract
The superconducting and structural properties of bilayer thin films based on YBa2Cu3O 7-x / YBa2Cu3O 7-x +6%BaZrO3 heterstructures have been studied. In a broad range of magnetic field strengths and temperatures, the optimal bilayer film comprises 30% YBCO at the substrate interface and 70% YBCO+6%BZO on the top. The critical current density measured for the optimal bilayer structure is shown to outperform the corresponding single layer films up to almost 60%. The obtained results are comprehensively discussed in the light of our previously published theoretical framework (Rivasto et al 2023 J. Phys.: Condens. Matter 35 075701:1-10). We conclude that the bilayering provides an efficient and easily applicable way to further increase the performance and applicability of high-temperature superconductors in various applications. Consequently, the bilayer films should be seriously considered as candidates for the upcoming generation of coated conductors.


Last updated on 2024-01-03 at 08:02