Regensburg 2025 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 44: Focus Session: Ising Superconductivity in Monolayer Transition Metal Dichalcogenides (joint session TT/HL/MA)
Donnerstag, 20. März 2025, 09:30–12:45, H36
Superconducting monolayer transition metal dichalcogenides (TMDs) like NbSe2, TaS2, and gated WSe2 or MoS2, have attracted lot of interest in recent years. On the one hand Ising spin-orbit coupling pins the electron’s spin out of plane, and hence is responsible for critical in-plane magnetic fields by far exceeding the Pauli limit. On the other hand, while the underlying pairing mechanism is still under debate, recent experiments provide strong evidence for its unconventional, multiband, nature. The Focus Session will feature experimental and theoretical advances on the superconductivity in monolayer TMDs, with focus on universal features, a possible Luttinger-Kohn mechanism, a nodal or even chiral nature of the gap functions, and their phase diagram.
Organizers: Milena Grifoni (Universität Regensburg), Julian Siegl (Universität Regensburg)
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09:30 | TT 44.1 | Topical Talk: Evidence of Unconventional Superconductivity in Monolayer and Bulk van der Waals Material TaS2 — •Somesh Chandra Ganguli, Viliam Vano, Yuxiao Ding, Maryam Khosravian, Jose Lado, and Peter Liljeroth |
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10:00 | TT 44.2 | Topical Talk: Signatures of Unconventional Superconductivity in Transition Metal Dichalcogenides — •Miguel Ugeda |
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10:30 | TT 44.3 | Topical Talk: Friedel Oscillations and Chiral Superconductivity in Monolayer NbSe2 — •Magdalena Marganska, Julian Siegl, Anton Bleibaum, Marcin Kurpas, Wen Wan, John Schliemann, Miguel M. Ugeda, and Milena Grifoni |
| 11:00 | 15 min. break | ||
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11:15 | TT 44.4 | Topical Talk: Unconventional Pairing in Ising Superconductors — •Andreas Kreisel, Subhojit Roy, Brian M. Andersen, and Shantanu Mukherjee |
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11:45 | TT 44.5 | Topical Talk: High-Field Study of Ising Superconductivity in TMDs — •Oleksandr Zheliuk, Xiaoli Peng, Andrew Ammerlaan, Puhua Wan, Yulia Kreminska, Steffen Wiedmann, Uli Zeitler, and Jianting Ye |
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12:15 | TT 44.6 | Unconventional Pairing in Ising Superconductors: Application to Monolayer NbSe2 — •Subhojit Roy, Andreas Kreisel, Brian Andersen, and Shantanu Mukherjee |
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12:30 | TT 44.7 | Emergence of Unconventional Superconductivity and Doped Mott Physics in 6R-TaS2 — •Yuxiao Ding, Amritroop Achari, Jonas Bekaert, Jose Lado, Rahul R. Nair, Peter Liljeroth, and Somesh C. Ganguli |