In a collaboration between CNR-SPIN, CNR-NANO and UNIGE, important information on the current-phase-relationship of planar Josephson junctions has been obtained.
Planar Josephson junctions (JJs) based on InSb nanoflags have recently emerged as an intriguing platform in superconducting electronics. The knowledge of the current-phase-relationship (CPR) of such junctions is crucial for their applications. In a recent publication entitled "Unveiling the current-phase-relationship of InSb nanoflag Josephson junctions using a nanoSQUID magnetometer", published in Nano Letters, superconducting quantum interference devices (SQUIDs) employing InSb nanoflag JJs have been fabricated and investigated. By measuring interference patterns in both symmetric and asymmetric SQUID configurations, unprecedented details of the junction's CPRs have been extracted. Furthermore, the flux-to-voltage sensitivity of the SQUIDs has been inspected to evaluate their performance as magnetometers.
The reported results showcase potential applications of these hybrid devices in nanoscale magnetometry.
For more details, see: https://pubs.acs.org/doi/10.1021/acs.nanolett.5c03765
The cover of the ACS Publications Nano Lett. October 1, 2025, volume 25, Issue 39 Pages 14237-14508 is from this research article.
