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.
Superconductivity, Correlations and Chern Insulators in Twisted Bilayer Graphene - Stevan Nadj-Perge
Kavli Institute for Theoretical Physics via YouTube
Overview
Syllabus
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
Taught by
Kavli Institute for Theoretical Physics
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