Dresden 2026 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 64: BKT Physics
TT 64.4: Vortrag
Mittwoch, 11. März 2026, 17:30–17:45, HSZ/0103
Two-dimensional multiband superconductivity in 1T-MoS2 — •Chithra H. Sharma1,2 and Madhu Thalakulam2 — 1Christian-Albrechts-Universität zu Kiel, 24098 Kiel, Germany — 2IISER Thiruvananthapuram, 695551 Thiruvananthapuram, India
van der Waals materials provide ultra-clean platforms to realise superconductivity in 2D, which is decorated by features such as Berezinskii-Kosterlitz-Thouless (BKT) phase transition and Bose metal phase owing to the vortex dynamics in the system. One interesting yet seldom-studied material is 1T-MoS2, the metallic phase. Stable 1T-MoS2 prepared using Ar/H2 microwave plasma exposure shows 2D superconductivity with a critical temperature of ∼920 mK. BKT phase transition, Bose metal phase and enhanced parallel critical field above the Pauli limit have been observed in the system. The low-noise differential I-V characteristics of the sample show features corresponding to multiband superconductivity.
Keywords: 2D superconductivity; TMDC; 1T-MoS2; Multiband superconductivity; Vortex fluctuations