Control of the nanosized defect network in superconducting thin films by target grain size
Rivasto Elmeri; Haalisto Christopher; Palonen Heikki; Khan Mukarram Zaman; Rijckaert Hannes; Salojärvi Esko; Aye Moe Moe; Huhtinen Hannu; Mäkilä Ermei; Van Driessche Isabel; Paturi Petriina
Control of the nanosized defect network in superconducting thin films by target grain size
Rivasto Elmeri
Haalisto Christopher
Palonen Heikki
Khan Mukarram Zaman
Rijckaert Hannes
Salojärvi Esko
Aye Moe Moe
Huhtinen Hannu
Mäkilä Ermei
Van Driessche Isabel
Paturi Petriina
NATURE RESEARCH
Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2021042825356
https://urn.fi/URN:NBN:fi-fe2021042825356
Tiivistelmä
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.
Kokoelmat
- Rinnakkaistallenteet [19207]