Simulating High-Temperature Superconductivity In A Triangular Moiré Lattice

• Colloquia
  Thursday, Mar 27, 2025

  11:15 - 12:15

  Physics Weissman Auditorium

  Simulating high-temperature superconductivity in a triangular moiré lattice

  Lecturer Prof. Kin Fai Mak

  <p>Light refreshments at 11:00</p>
  Abstract: Moiré materials built on transition metal dichalcogenide semiconductors have emerged as a tunable platform for simulating the Hubbard model on a triangular lattice. A natural question arises: Can the platform be tuned to yield a phase diagram similar to that in high-temperature cuprate superconductors? In this talk, I will discuss the emergence of “high-temperature” superconductivity near the Mott transition in a triangular moiré lattice with intermediate coupling strength. The emergent doping-temperature phase diagram looks remarkably similar to that in cuprate superconductors. I will also discuss the evolution of the phase diagram by tuning the band structure of the material by gating. The results could provide a new angle for understanding the phenomenon of high-temperature superconductivity in strongly correlated materials.&nbsp;&nbsp;