Engineering 2D square lattice Hubbard models in 90$^\circ$ twisted
Ge/SnX (X=S, Se) moir\'e supperlattices
Engineering 2D square lattice Hubbard models in 90$^\circ$ twisted
Ge/SnX (X=S, Se) moir\'e supperlattices
Due to the large-period superlattices emerging in moir\'e two-dimensional (2D) materials, electronic states in such systems exhibit low energy flat bands that can be used to simulate strongly correlated physics in a highly tunable setup. While many investigations have thus far focused on moir\'e flat bands and emergent correlated electron …