A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Enhanced critical current density in optimized high-temperature superconducting bilayer thin films
Tekijät: Rivasto, Elmeri; Aye, Moe; Huhtinen, Hannu; Paturi, Petriina
Kustantaja: IOP Publishing Ltd
Kustannuspaikka: BRISTOL
Julkaisuvuosi: 2024
Lehti: Journal of Physics: Condensed Matter
Tietokannassa oleva lehden nimi: JOURNAL OF PHYSICS-CONDENSED MATTER
Lehden akronyymi: J PHYS-CONDENS MAT
Artikkelin numero: 135702
Vuosikerta: 36
Numero: 13
Sivujen määrä: 9
ISSN: 0953-8984
eISSN: 1361-648X
DOI: https://doi.org/10.1088/1361-648X/ad162c
Julkaisun avoimuus kirjaamishetkellä: Ei avoimesti saatavilla
Julkaisukanavan avoimuus : Osittain avoin julkaisukanava
Verkko-osoite: https://iopscience.iop.org/article/10.1088/1361-648X/ad162c
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.
