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Control of the nanosized defect network in superconducting thin films by target grain size

A nanograined YBCO target, where a great number of grain boundaries, pores etc. exist, is shown to hold an alternative approach to future pulsed laser deposition based high-temperature superconductor thin film and coated conductor technologies. Although the nanograined material is introduced earlier...

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Detalles Bibliográficos
Autores principales: Aye, Moe Moe, Rivasto, Elmeri, Khan, Mukarram Zaman, Rijckaert, Hannes, Salojärvi, Esko, Haalisto, Christopher, Mäkilä, Ermei, Palonen, Heikki, Huhtinen, Hannu, Van Driessche, Isabel, Paturi, Petriina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7966807/
https://www.ncbi.nlm.nih.gov/pubmed/33727621
http://dx.doi.org/10.1038/s41598-021-85304-4
Descripción
Sumario:A nanograined YBCO target, where a great number of grain boundaries, pores etc. exist, is shown to hold an alternative approach to future pulsed laser deposition based high-temperature superconductor thin film and coated conductor technologies. Although the nanograined material is introduced earlier, in this work, we comprehensively demonstrate the modified ablation process, together with unconventional nucleation and growth mechanisms that produces dramatically enhanced flux pinning properties. The results can be generalized to other complex magnetic oxides, where an increased number of defects are needed for modifying their magnetic and electrical properties, thus improving their usability in the future technological challenges.