Chiral model of twisted bilayer graphene realized in a monolayer
ORAL
Abstract
When graphene is subject to a superlattice potential with a nearly commensurate $sqrt{3} imessqrt{3}$ supercell, the resulting moir'e physics exactly maps to the chiral model of twisted bilayer graphene, except with half as many degrees of freedom. In this talk, we describe this mapping, characterize the interacting physics at integer filling, and determine the impact of symmetry-allowed deviations from the ideal chiral model.
*Work by A.D. is supported by the National Science Foundation under the Columbia MRSEC on Precision-Assembled Quantum Materials (PAQM), Grant No. DMR-2011738. J.B., J.C., V.C., and D.G. acknowledge support from the Flatiron Institute, a division of the Simons Foundation. J.C. acknowledges the Alfred P. Sloan Foundation through a Sloan Research Fellowship and hospitality by the Kavli Institute for Theoretical Physics, where this research was supported in part by the National Science Foundation under Grant No. NSF PHY-1748958.
–
Publication: Phys. Rev. B 108, 075126
Presenters
-
Aaron P Dunbrack
- Stony Brook University (SUNY)