Regensburg 2025 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 11: Superconductivity: Poster
TT 11.2: Poster
Montag, 17. März 2025, 15:00–18:00, P4
Exfoliation and STM/STS Investigations of Monolayer NbSe2 S/F Systems — •Tiark Tiwary1, Marcel Strohmeier1, Elke Scheer1, and Angelo Di Bernardo1, 2 — 1University of Konstanz, 78457 Konstanz, Germany — 2University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy
Two dimensional materials have become of great interest in the recent years, because of their promise to enable novel electronic functionality by choosing suitable material combinations. A typical feature of 2D superconductors is their anisotropy of the critical field which is most pronounced in the monolayer limit. To understand more about the behaviour of Ising superconductivity in monolayer NbSe2, STM/STS measurements were performed. To this end, gold-assisted exfoliation was used to obtain large monolayer on a Ti/Au surface. The measurements largely confirmed the previous reports [1, 2] on monolayer NbSe2. To develop devices for superconducting spintronics, the interplay between a ferromagnet and monolayer NbSe2 is investigated. Multiple techniques to gain NbSe2 monolayer were explored. The exfoliation of small monolayers on a Co surface could be achieved.
[1] Wan et al., Adv. Mater. 34, 2206078 (2022);
[2] Kuzmanović et al., Phys. Rev. B 106, 184514 (2022).
Keywords: Ising superconductivity; Monolayer/2D materials; Transition metal dichalcogenide; Scanning tunneling spectroscopy; Mechanical exfoliation