Explore the groundbreaking discovery of magic-angle graphene superlattices in this 38-minute conference talk by Pablo Jarillo-Herrero from MIT at the APS March Meeting 2018. Delve into the fascinating world of strongly correlated physics as Jarillo-Herrero presents his findings on ultrathin materials composed of misaligned graphene sheets. Learn how these structures can transition from Mott insulators to superconductors, and understand the implications for high-temperature superconductivity research. Examine the unique properties of twisted bilayer graphene, including half-filling insulating phases, electrically tunable superconductivity, and similarities to cuprate superconductors. Gain insights into novel approaches for investigating strongly correlated quantum materials, and discover the potential of this new platform for advancing our understanding of complex electronic systems.
Magic-Angle Graphene Superlattices - A New Platform for Strongly Correlated Physics
APS Physics via YouTube
Overview
Syllabus
Acknowledgements
Example Correlated Insulator: Mott Insulators
Mott Insulator: parent compound High-T Cuprate Superconductors
Novel Approaches to investigate Strongly Correlated Quantum Materials: ultra-cold atom lattices
New Platform for Strongly Correlated Physics based on Magic Angle Graphene Superlattices
Welcome to 2D Materials Legoland
Twisted bilayer graphene: twist angle dependence
Magic Angle Twisted Bilayer Graphene (MA-TBG)
Anomalous Insulating Behavior at Half-Filling
Unusual Metal-Insulator Transition
Magnetic Field induced Insulator to Metal Transition both perpendicular and parallel fields!
MA-TBLG Superconducts!!!
Similarity MA-TBLG vs Cuprates
Magnetic field dependence
Phase Coherence Phenomena: Josephson effect & Fraunhofer patterns
Quantum Oscillations & Quasiparticle Fermi Surface
How "Strong" a Superconductor is MA-TBG?
Strong Coupling Superconductivity
New Platform for Strongly Correlated Physics based on Magic Angle (Graphene) Superlattices
Taught by
APS Physics
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