February 28, 2026 to March 6, 2026
Europe/Berlin timezone

Bandwidth-tuned Mott transition and superconductivity in twisted WSe2

Not scheduled
20m
Invited Talk

Description

Moiré materials built on transition metal dichalcogenide semiconductors have emerged as a programmable Hubbard model system. A natural question then arises: can such a system yield high-temperature superconductivity? In this talk, I will discuss the emergence of effectively high-temperature superconductivity near Mott transitions in twisted WSe2 with intermediate interaction strength. Remarkably, the emergent doping-temperature phase diagram resembles that in copper oxide superconductors. I will also discuss the evolution of the phase diagram as a function of gate-tuned displacement field that modifies the electronic band structure. The results could provide a new angle for understanding the phenomenon of high-temperature superconductivity in strongly correlated materials.

Author

Jie Shan (Max Planck Institute for the Structure and Dynamics of Matter)

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