Speaker: Mei-Yin Chou
Affiliation: Georgia Tech, USA & Academia Sinica, TW
Abstract Details: The Dirac-Weyl Hamiltonian for massless fermions describes the low-energy quasiparticles in graphene. Going beyond the monolayer, intriguing physics has been found in few-layer graphene systems. In this talk, I will focus on our recent theoretical and computational studies of a few representative systems. In particular, the quasiparticle states in rotated bilayer graphene systems act as massless fermions with two “flavors”, and interlayer coupling induces neutrino-like oscillations and anisotropic transport. In addition, a rare fractal-like “butterfly” energy spectrum arises under an external magnetic field. These two- dimensional atomic layer systems provide a unique platform to probe the rich physics involving multiple interacting massless fermions.Click HERE for directions

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