Regensburg 2022 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 10: Focus Session: Superconductivity in 2d-Materials and their Heterostructures
TT 10.9: Vortrag
Dienstag, 6. September 2022, 13:00–13:15, H3
Emergence of unconventional proximity effect in Cr1/3NbS2/NbS2 heterostructures — •Alfredo Spuri, Roman Hartmann, Elke Scheer, and Angelo Di Bernardo — University of Konstanz
The helimagnetic metal Cr1/3NbS2 has been reported to host soliton excitations based on magnetransport measurements which have been performed on flakes of this material down to the 2D limit. Investigating the proximity effect between 2D flakes of such a magnetic material and conventional 2D superconductors could lead to the discovery of unconventional spin-triplet superconducting states, with possible applications for superconducting spintronics and quantum computing. Based on these motivations, we have fabricated 2D Cr1/3NbS2/NbSe2 and Cr1/3NbS2/NbS2 bilayers and investigated their low temperature magnetotransport and spectroscopic properties. In addition, we have also realized /NbSe2/Cr1/3NbS2/NbSe2 Josephson junctions and performed measurements on them. The results obtained give indication for the emergence of an unconventional proximity effect, possibly due to the emergence of spin-triplet pairing correlations.