| Issue |
EPJ Web Conf.
Volume 233, 2020
Portuguese Condensed Matter Physics National Conference (CMPNC 2019)
|
|
|---|---|---|
| Article Number | 05007 | |
| Number of page(s) | 6 | |
| Section | Thin films, Nanostructures, Artificially Structured Materials, Device Physics | |
| DOI | https://doi.org/10.1051/epjconf/202023305007 | |
| Published online | 16 April 2020 | |
https://doi.org/10.1051/epjconf/202023305007
Low temperature characterization of high efficiency spin-filter Josephson junctions
1 Dipartimento di Fisica E. Pancini, Università degli Studi di Napoli Federico II, Monte S. Angelo, via Cinthia, I-80126 Napoli, Italy
2 CNR-SPIN, c/o Complesso di Monte S. Angelo, via Cinthia, I-80126 Napoli, Italy
3 SeeQC-eu, via dei Due Macelli 66, I-00187 Roma, Italy
4 Indian Institute of Technology Bombay, Main Gate Rd, IIT Area, Powai, Mumbai, Maharashtra 400076, India
5 Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
6 Dipartimento di Ingegneria Elettrica e delle Tecnologie dell’Informazione, Università degli Studi di Napoli Federico II, via Claudio, I-80125 Napoli, Italy
* Corresponding author: caruso@fisica.unina.it
Published online: 16 April 2020
The interplay between superconducting and ferromagnetic order pa¬rameters in S/F interfaces gives rise to a wide range of peculiar properties with applications in high-efficiency computation and in the emerging field of super¬conducting spintronics. In NbN/GdN/NbN Josephson junctions, GdN barriers give unique properties due to the double insulting and ferromagnetic nature of the material, as demonstrated in previous works. Here we focus on tunneling spectroscopy of these junctions down to 0.3 K when changing the barrier thick¬ness, which contributes to complete a consistent picture on the physics of these junctions and supports the previous indications of equal-spin Cooper pairs con¬tributing to the total supercurrent of the devices.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.