Domain wall induced spin-polarized flat bands in antiferromagnetic topological insulators
Domain wall induced spin-polarized flat bands in antiferromagnetic topological insulators
A flat band in fermionic system is a dispersionless single-particle state with a diverging effective mass and nearly zero group velocity. These flat bands are expected to support exotic properties in the ground state, which might be important for a wide range of promising physical phenomena. For many applications, it …