Superconductivity, Correlations and Chern Insulators in Twisted Bilayer Graphene - Stevan Nadj-Perge

Explore a 48-minute conference talk on superconductivity, correlations, and Chern insulators in twisted bilayer graphene stabilized by WSe2. Delve into the latest developments in Moire materials physics, presented by Stevan Nadj-Perge at the Kavli Institute for Theoretical Physics. Examine phase diagrams, temperature dependencies, and the effects of spin-orbit coupling in various devices. Investigate the continuum model with spin-orbit coupling and its implications for Chern insulators. Analyze STM measurements of TBG/WSe2 systems and discuss the persistence of correlations in low-angle devices. Gain insights from this comprehensive overview of recent experimental and theoretical advancements in the field of correlated phases in Moire materials.

Intro
Magic angle = Large U/W
Control U - Screening vs. Angle Change
Control U/W - Screening vs. Angle Change
Outline
Phase diagram in 0.97° device (D1)
Temperature dependence and gaps
Temperature dependence for low angle devices
Phase diagram D2 vs. D4
What is different? Spin-Orbit Coupling
What is different? Landau Fan Diagram
Continuum model with spin-orbit coupling (SOC)
Conclusions
Chern Insulators
STM - Measurements (TBG/WSe2)
Phase diagram for D2(0.87° -0.79°)
Did we get rid of the correlations? NO