Spin-orbit driven superconducting proximity effects in Pt/Nb thin films

Machiel Geert Flokstra, Rhea Stewart, Chi Ming Yim, Christopher Trainer, Peter Wahl, David N. Miller, Nathan Satchell, Gavin Burnell, Hubertus Luetkens, Thomas Prokscha, Andreas Suter, Elvezio Morenzoni, Irina V. Bobkova, Alexander M. Bobkov, Steve Lee*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
9 Downloads (Pure)

Abstract

Manipulating the spin state of thin layers of superconducting material is a promising route to generate dissipationless spin currents in spintronic devices. Approaches typically focus on using thin ferromagnetic elements to perturb the spin state of the superconducting condensate to create spin-triplet correlations. We have investigated simple structures that generate spin-triplet correlations without using ferromagnetic elements. Scanning tunneling spectroscopy and muon-spin rotation are used to probe the local electronic and magnetic properties of our hybrid structures, demonstrating a paramagnetic contribution to the magnetization that partially cancels the Meissner screening. This spin-orbit generated magnetization is shown to derive from the spin of the equal-spin pairs rather than from their orbital motion and is an important development in the field of superconducting spintronics.
Original languageEnglish
Article number5081
Number of pages5
JournalNature Communications
Volume14
DOIs
Publication statusPublished - 21 Aug 2023

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