Photoinduced Floquet topological magnons in a ferromagnetic checkerboard lattice

This theoretical work is devoted to investigating laser-irradiated Floquet topological magnon insulators on a two-dimensional checkerboard ferromagnet and corresponding phase transitions. It shown that the insulator able be transformed from into another one possessing various Berry curvatures Chern numbers by changing light intensity. Especially, we also show both Tamm-like topologically protected edge states can exist when nontrivial gap opens. In addition, our results display sign of thermal Hall conductivity tunable via varying intensity laser field.