Engineering 2D square lattice Hubbard models in 90${}^{\circ }$ twisted Ge/SnX (X=S, Se) moiré supperlattices

Qiaoling Xu, Ammon Fischer, Nicolas Tancogne-Dejean +6

Due to the large-period superlattices emerging in moire two-dimensional (2D) materials, electronic states in such systems exhibit low energy flat bands that can be used to simulate…