Institute for Condensed Matter Theory Seminar: "Flavor Ferromagnetism and Superconductivity in Graphene Multilayers"
- Event Type
- Seminar/Symposium
- Sponsor
- The Institute for Condensed Matter Theory
- Date
- Jan 24, 2022 12:00 pm
- Speaker
- A.H. MacDonald, Physics Department, University of Texas at Austin
- Contact
- Janice Benner
- jbenner@illinois.edu
- Views
- 119
- Originating Calendar
- Physics - The Anthony J Leggett Institute for Condensed Matter Theory Seminar
Band states in graphene multilayers have a 4-fold spin x valley flavor degeneracy. Recent experiments have demonstrated that ground states that break flavor degeneracy without breaking translational symmetry are common in the absence of a magnetic field when correlations are strong, just as they are in the quantum Hall regime. I will discuss properties of these flavor ferromagnets, commenting on the Fermi surface reconstructions and soft collective modes that they produce, and on the relationship to superconductivity