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Twistronics: Manipulating the Electronic Properties of Two-dimensional Layered Structures through their Twist Angle
Stephen Carr, Daniel Massatt, Shiang Fang +3
The ability in experiments to control the relative twist angle between successive layers in two-dimensional (2D) materials offers a new approach to manipulating their electronic pr…
Quantitative Studies on the Quantum Critical Regime near Superfluid to Mott Insulator Transition
Hao Lee, Shiang Fang, Daw-Wei Wang
We investigate the critical behaviors of correlation length and critical exponents for strongly interacting bosons in a two-dimensional optical lattice via quantum Monte Carlo simu…
Superlattice-induced insulating states and valley-protected orbits in twisted bilayer graphene
Y. Cao, J. Y. Luo, V. Fatemi +6
Twisted bilayer graphene (TwBLG) is one of the simplest van der Waals heterostructures, yet it yields a complex electronic system with intricate interplay between moiré physics and…
Electronic Structure Theory of Weakly Interacting Bilayers
Shiang Fang, Efthimios Kaxiras
We derive electronic structure models for weakly interacting bilayers such as graphene-graphene and graphene-hexagonal boron nitride, based on density functional theory calculation…